{"title":"Checkers for Freshwater","description":null,"products":[{"product_id":"hanna-instruments-775-freshwater-alkalinity-colorimeter-checker®hc","title":"Hanna Instruments-775 Freshwater Alkalinity Colorimeter - Checker®HC","description":"\u003cp\u003eIdeal for fresh water aquariums (not suitable for salt water marine tanks).\u003c\/p\u003e\n\u003cp\u003eThe HI-775 Alkalinity Checker for fresh water is a simple, accurate and cost effective way to measure alkalinity in fresh water.\u003c\/p\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 25 tests.\u003c\/p\u003e\n\u003cp\u003eUse code HI-775-26 for future purchases.\u003c\/p\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, it is easy to use with single button operation and a large LCD display. This mini tester also features auto shut-off to ensure a longer battery life.\u003c\/p\u003e\n\u003cp\u003eThe Hanna Instruments-775 is ideal for checking water quality, great for educational and environmental applications and for use in freshwater aquaria.\u003c\/p\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, the Hanna Instruments-775 provides quick, accurate results in four easy steps. (See below).\u003c\/p\u003e\n\u003cp\u003eThe Hanna Instruments-775 uses a colorimetric method. The reaction causes a distinctive range of colours from yellow to blue to develop. This meter has been developed to work with fresh water samples.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e Any chlorine present in the sample will interfere with the reading. To remove the chlorine interference add one drop of Hanna Instruments-93755-53 Chlorine Remover to the unreacted sample prior to testing.\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSmall palm-sized design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate from ±5ppm ± 5% of reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eUses a single AAA battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAuto Power Off after 10 minutes in inactivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in timer for timed reaction readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal for:\u003c\/h3\u003e\n\u003cul style=\"list-style-type: circle;\"\u003e\n\u003cli\u003eWater Quality\u003c\/li\u003e\n\u003cli\u003eEducation\u003c\/li\u003e\n\u003cli\u003eFreshwater Aquarium\u003c\/li\u003e\n\u003cli\u003eEnvironmental\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOrder Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Hanna Instruments-775 Checker®HC is supplied with 2 cuvettes and caps, alkalinity reagent kit for 25 tests (Hanna Instruments-775-26), 1 x1.5V AAA battery, and an instruction manual.\u003c\/p\u003e\n\u003cp\u003eAlso available: Hanna Instruments-775-11 Calibration set.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354374516887,"sku":"HI-775","price":68.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/43f668bb-d9c2-45f4-ac8e-cb13aa137212.jpg?v=1782727823"},{"product_id":"hanna-instruments-708-11-nitrite-high-range-checker-hc-calibration-check-set-0-150-ppm","title":"Hanna Instruments-708-11 Nitrite High Range Checker HC Calibration Check Set (0-150 ppm)","description":"The Nitrite High Range Checker® HC Calibration Check Set – Hanna Instruments-708-11 provides a simple solution to validating the Nitrite High Range Checker® HC – Hanna Instruments-708 in the range of 0 to 150 ppm (mg\/L) nitrite. This high-quality set of standards is supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiry date for traceability when certifying the Checker® HC.\u003cbr\u003e\u003ch3\u003eHanna Instruments-708-11 Nitrite High Range Checker HC Calibration Check Set\u003c\/h3\u003e\u003cbr\u003e\u003cp\u003eHanna Instruments-708-11 is a high-quality set of calibration standards that allows users to validate the Nitrite High Range Checker® HC – Hanna Instruments-708. The Hanna Instruments-708-11 includes one sealed cuvette for zero ppm nitrite and one cuvette that is tinted to an equivalent 75 +\/- 5 ppm nitrite sample @ 25°C. The calibration check set is produced using reagent grade chemicals in a temperature controlled environment.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354378547351,"sku":"HI-708-11","price":28.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-708-11_nitrite_high_range_checker_hc_calibration_check_set_8ce0c20d-beaf-424e-b779-e6e97a9c3f70.jpg?v=1624278954"},{"product_id":"hanna-instruments-771-chlorine-ultra-high-range-handheld-colorimeter-checker®hc","title":"Hanna Instruments-771 Chlorine Ultra High Range Handheld Colorimeter, Checker®HC","description":"\u003cp\u003eThe Hanna Instruments 771 Chlorine Ultra High Range Handheld Colorimeter is a cutting edge, portable device designed for precise measurement of chlorine levles in water. With its ultra-high range capability, this colorimeter is perfect for use in water treatment, swimming pools, and industrial processes where accurate chlorine monitoring is essential. \u003c\/p\u003e\n\u003cp\u003eFeaturing an intuitive interface, and a compact design, this Checker HC is user-friendly and ideal for on-the-go testing. \u003c\/p\u003e\n\u003cp\u003eSimple to use, you add a sample to the cuvette, insert it into the colorimeter, and receive fast, reliable results with just the push of a button. The built-in calibration feature ensures concsitent accuracy, while the large, easy-to-read display makes interpreting results extremely straightforward.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003eSmall palm-sized design\u003c\/p\u003e\n\u003cp\u003eAccurate from ±3 ppb ±5% of reading\u003c\/p\u003e\n\u003cp\u003eDedicated to a single parameter\u003c\/p\u003e\n\u003cp\u003eUses a single AAA battery\u003c\/p\u003e\n\u003cp\u003eAuto Power Off after 10 minutes in inactivity\u003c\/p\u003e\n\u003cp\u003eBuilt-in timer for timed reaction readings\u003c\/p\u003e\n\u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cp\u003eWater Quality\u003c\/p\u003e\n\u003cp\u003eEducation\u003c\/p\u003e\n\u003cp\u003ePlating\u003c\/p\u003e\n\u003cp\u003eEnvironmental\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354394865815,"sku":"HI-771","price":85.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1_6f9330bd-5b41-4136-83e2-c3896af45302.png?v=1780735436"},{"product_id":"hanna-instruments-770-silica-high-range-handheld-colorimeter-checker®hc","title":"Hanna Instruments-770 Silica High Range Handheld Colorimeter, Checker®HC","description":"\u003cp\u003eIdeal for fresh water aquariums, the Hanna Instruments-770 pocket checker is a simple and accurate way to measure high ranges of silica.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eChecker®HC is supplied with reagents for 6 tests. Use code Hanna Instruments-770-25 (25 tests) for future purchases.\u003c\/p\u003e\u003cbr\u003e\u003cdiv class=\"row\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-row section 1\" id=\"description\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003cbr\u003e\u003cp\u003eThe Hanna Instruments-770 pocket checker is a simple and accurate way to measure high ranges of silica.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003eThe Hanna Instruments-770 Checker for High Range Silica is simple to use following the steps detailed below:\u003c\/p\u003e\n\u003cbr\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eAccurate and easy to use\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eAdaptation of EPA Diazotization method\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e±2 ppm ±5% of reading accuracy\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e1 ppm resolution\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eDesigned to work with Hanna reagents\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eLarge easy to read digits\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eAuto shut-off\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eAquaculture\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eQuick on the spot analysis\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eRoutine water quality testing\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\u003cbr\u003e\u003cdiv class=\"row\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-row section four\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-text col-xs-12 col-sm-7 add-p-r rem-p-l\"\u003e\n\u003cbr\u003e\u003ch3\u003eSupplied with\u003c\/h3\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003e2 sample cuvettes with caps\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eReagents for 6 tests (re-ordering information Hanna Instruments-770-25 x 25 tests)\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e1 x 1.5V AAA battery\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eInstructions\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003eAlso available: Hanna Instruments-770-11 Calibration set\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354398699671,"sku":"HI-770","price":85.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-770_silica_high_range_handheld_colorimeter_checker_hc_56abf7c5-f3e1-4f60-9830-4af8b8dc8e0d.jpg?v=1624279506"},{"product_id":"hanna-instruments-761-total-chlorine-ultra-low-range-handheld-colorimeter-checker®hc","title":"Hanna Instruments-761 Total Chlorine Ultra Low Range  Handheld Colorimeter, Checker HC","description":"\u003cdiv class=\"row\"\u003eThe Hanna Instruments-761 Checker is a simple, accurate, and cost effective way to measure ultra-low ranges of total chlorine.\u003cbr\u003e\n\u003cdiv id=\"description\" class=\"section-row section 1\"\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, this checker provides quick, accurate results in four easy steps\u003c\/p\u003e\nThe Hanna Instruments-761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.\u003cbr\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\nSmall palm-sized design\u003c\/div\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003cp\u003eAccurate from ±5ppb ± 5% of reading\u003c\/p\u003e\nDedicated to a single parameter\u003cbr\u003e\n\u003cp\u003eUses a single AAA battery\u003c\/p\u003e\nAuto Power Off after 10 minutes in inactivity\u003cbr\u003e\n\u003cp\u003eBuilt-in timer for timed reaction readings\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eIdeal for:\u003c\/h3\u003e\nWater Quality\u003cbr\u003e\n\u003cp\u003eEducation\u003c\/p\u003e\nWater Purification\u003cbr\u003e\n\u003cp\u003eEnvironmental\u003c\/p\u003e\n\u003cbr\u003e\u003cstrong\u003eOrder Information:\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003eThe Hanna Instruments-761 Checker is supplied with 2 cuvettes and caps, reagent starter kit (6 packets for total chlorine ultra-low range - re-ordering information Hanna Instruments-761-25 x 25 tests), 1 x 1.5V AAA battery, and an instruction manual.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eAlso available: Calibration set Hanna Instruments-711-11\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFour steps. One click. Instant Readout\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section nine\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-6 rem-pad-mobile rem-p-l\"\u003e\n\u003cdiv class=\"section-text col-xs-7 col-sm-9\"\u003e\n\u003cp\u003e1. ‘Zero’ the Checker®HC with your vial inside\u003c\/p\u003e\n\u003c\/div\u003e\n2. Place a 10ml water sample into the vial and add your reagent\u003c\/div\u003e\n\u003cbr\u003e3. Place your vial into your Checker®HC\u003cbr\u003e\n\u003cdiv class=\"col-xs-12 col-sm-6 rem-pad-mobile rem-p-r\"\u003e\n\u003cdiv class=\"section-image col-xs-5 col-sm-3 circle-left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n4. Press the button and read the results\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":54897205051765,"sku":"HI-761","price":71.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/total-chlorine-checker-ultra-low-range-0-to-500ppb.jpg?v=1733408724"},{"product_id":"hanna-instruments-753-chloride-handheld-colorimeter-checker®hc","title":"Hanna Instruments-753 Chloride Handheld Colorimeter, Checker®HC","description":"Ideal for drinking water, Hanna Instruments-753 is a simple, accurate, and cost effective way to measure chloride.\u003cbr\u003e\u003cp\u003eHanna Instruments-753 is a simple, accurate, and cost effective way to measure chloride. Designed as a more accurate alternative to chemical test kits, the Hanna Instruments-753 provides quick, accurate results in three easy steps.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe Hanna Instruments-753 uses an adaptation of the mercury (II) thiocyanate method.\u003c\/p\u003e\u003cbr\u003e\u003ch3\u003eIdeal for\u003c\/h3\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eDrinking water\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eWaste water\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eBoiler and cooling towers\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eSmall palm-sized design\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eAccurate from ±0.5ppm ± 6% of reading\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eUses a single AAA battery\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eAuto Power Off after 10 minutes in inactivity\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eBuilt-in timer for timed reaction readings\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003ch3\u003eOrder Information\u003c\/h3\u003e\u003cbr\u003e\u003cp\u003eThe Hanna Instruments-753 is supplied with a reagent starter kit x 25 (Re-ordering information Hanna Instruments-753-25 x 25 tests), sample cuvettes with caps (2), syringes with tips (2), 1 x 1.5V AAA battery and an instruction manual.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eCalibration kit also available Hanna Instruments-753-11\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354421047447,"sku":"HI-753","price":85.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-753_chloride_handheld_colorimeter_checker_hc_7f70fe9a-aedd-4bbe-b2e0-f6d28b3ee06d.jpg?v=1624279890"},{"product_id":"hanna-instruments-749-chromium-vi-low-range-handheld-colorimeter-checker®hc","title":"Hanna Instruments-749 Chromium VI Low Range Handheld Colorimeter, Checker®HC","description":"\u003cp\u003eIdeal for water quality testing, the Hanna Instruments-749 Checker is a simple, accurate, and cost effective way to measure low ranges of Chromium VI in fresh water.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 6 tests. Use code Hanna Instruments-749-25 (25 tests) for future purchases.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Hanna Instruments-749 Checker is a simple, accurate, and cost effective way to measure low ranges of chromium VI in fresh water.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, the Hanna Instruments-749 provides quick, accurate results in four easy steps.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Hanna Instruments-749 uses an adaptation of the ASTM Manual of Water and Environmental Technology D1687-92, Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSmall palm-sized design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate from ±2 ppb ±4% of reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUses a single AAA battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAuto Power Off after 10 minutes in inactivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in timer for timed reaction readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIdeal for:\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWater Quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEducation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnvironmental\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eOrder Information:\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Hanna Instruments-749 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of chromium VI LR reagent - re-ordering information Hanna Instruments-749-25 x 25 tests), 1 x 1.5V AAA battery, and an instruction manual.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAlso available: Calibration set Hanna Instruments-749-11.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354448048279,"sku":"HI-749","price":82.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-749_chromium_vi_low_range_handheld_colorimeter_checker_hc_ad55053b-c694-4d16-bea0-ae22ab6140e3.jpg?v=1686669817"},{"product_id":"hanna-instruments-706-phosphorus-high-range-handheld-colorimeter-checker®hc","title":"Hanna Instruments-706 Phosphorus High Range Handheld Colorimeter - Checker®HC","description":"\u003cp\u003eIdeal for fresh water aquariums, the HI-706 High Range Phosphorus Checker bridges the gap between simple chemical test kits and professional instrumentation.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRange\u003c\/strong\u003e: 0.0 to 15.0ppm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMain Benefits\u003c\/strong\u003e\u003cbr\u003eTesting is quick and easy\u003cbr\u003eHigh precision results - more accurate than chemical test kits\u003cbr\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003cbr\u003eFully portable, fitting easily into both palm and pocket\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupplied with:\u003c\/strong\u003e\u003cbr\u003e2 sample cuvettes\u003cbr\u003eCuvette cap\u003cbr\u003eStarter pack of reagents x 20 tests (re-ordering information: HI-706-25 x 40 tests)\u003cbr\u003e1 x 1.5 AAA battery\u003cbr\u003eInstructions\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSku:HI-706\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354485698711,"sku":"HI-706","price":85.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/4WITHWATERMARK_46c96489-a84a-447c-9ad9-2c08064e53b5.jpg?v=1705499208"},{"product_id":"hanna-instruments-709-manganese-high-range-handheld-colorimeter-checker®hc","title":"Hanna Instruments-709 Manganese High Range Handheld Colorimeter - Checker®HC","description":"\u003cp\u003eIdeal for plating, the Hanna Instruments-709 high range Manganese Checker is a simple, accurate and cost effective way to measure high ranges of manganese in water.\u003c\/p\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 6 tests. Use code Hanna Instruments-709-25 (25 tests) for future purchases.\u003c\/p\u003e\n\u003ch3\u003eHanna Instruments-709 Manganese High Range Handheld Colorimeter - Checker®HC\u003c\/h3\u003e\n\u003cp\u003eThe Hanna Instruments-709 high range Manganese Checker is a simple, accurate and cost effective way to measure high ranges of manganese in water.\u003c\/p\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, the Hanna Instruments-709 provides quick, accurate results in four easy steps.\u003c\/p\u003e\n\u003cp\u003eHanna Instruments-709 uses an adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Periodate method. The reaction between manganese and the reagents cause a pink tint in the sample.\u003c\/p\u003e\n\u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWater quality\u003c\/li\u003e\n\u003cli\u003eEducation\u003c\/li\u003e\n\u003cli\u003eIndustrial\u003c\/li\u003e\n\u003cli\u003eEnvironmental\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eSmall palm-sized design\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate from ± 0.02 ppm ±5% of reading\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eAuto power off after 10 minutes of inactivity\u003c\/li\u003e\n\u003cli\u003eBuilt-in timer for timed reaction readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eOrder Information\u003c\/h3\u003e\n\u003cp\u003eThe Hanna Instruments-709 Manganese High Range Checker is supplied with sample cuvettes with caps (2), Manganese High reagent starter kit (Hanna Instruments-709-25 reagents for 25 tests), glass cylinders with rubber cap (2), battery, instructions and quick start guide.\u003c\/p\u003e\n\u003cp\u003eYou can also buy Hanna Instruments-709-11 Calibration check set. Replacement reagents Hanna Instruments-709-25 Manganese high range reagents 25 tests.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354486059159,"sku":"HI-709","price":85.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi709_b52d5de1-de01-47d2-8a71-bbf3641642c6.jpg?v=1624280636"},{"product_id":"hanna-instruments-701-free-chlorine-handheld-colorimeter-checker®hc","title":"Hanna Instruments-701 Free Chlorine Handheld Colorimeter - Checker®HC","description":"\u003cp\u003eIdeal for swimming pools, spas and aquariums.\u003c\/p\u003e\n\u003cp\u003eChlorine is the most common water disinfectant and by monitoring chlorine regularly and accurately, serious health and safety risks can be avoided.\u003c\/p\u003e\n\u003cp\u003eCan also be used to determine chlorine levels in fish tanks for optimum fish and plant health. Use alongside recommended dechlorinators.\u003c\/p\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 6 tests. Use code Hanna Instruments-701-25 (25 tests) for future purchases.\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section 1\" id=\"description\"\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003ch3\u003eIdeal for swimming pools, spas and aquariums\u003c\/h3\u003e\n\u003cp\u003eChlorine is the most common water disinfectant and by monitoring chlorine regularly and accurately, serious health and safety risks can be avoided.\u003c\/p\u003e\n\u003cp\u003eThe contoured style of the Hanna Instruments-701 Free Chlorine Checker is designed to fit in the palm of your hand. The large LCD is easy to read and the auto shut-off feature ensures the battery life will not be drained if you forget to turn it off.\u003c\/p\u003e\n\u003cp\u003eCan also be used to determine chlorine levels in fish tanks for optimum fish and plant health. Use alongside recommended dechlorinators.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section four\"\u003e\n\u003cdiv class=\"section-text col-xs-12 col-sm-7 add-p-r rem-p-l\"\u003e\n\u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSwimming pools and spas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eFruit, vegetable and salad washing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eDisinfection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAquaculture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMain Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSupplied with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eStarter pack of reagents (re-ordering information - Hanna Instruments-701-25\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFour steps, one click instant readout\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eZero the Checker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAdd reagent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eInsert sample into Checker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003ePress button for results\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 2.50 ppm (mg\/L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm (mg\/L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrecision\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e3% of reading ±0.03 ppm (mg\/L) @ 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Source\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eLED @ 525 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Detector\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eSilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e(1) 1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-off\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eAfter 2 minutes of non-use and after read\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e64 g (2.25 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMethod\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eAdaptation of USEPA method 330.5. The reaction between free chlorine and the DPD reagent will cause a pint tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePLEASE NOTE:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003eIn some cases, samples may contain other parameters which may interfere with results\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterference may be caused by:\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eBromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese. In case of water with hardness greater than 500 mg\/L CaCO\u003csub\u003e3\u003c\/sub\u003e, shake the sample for approximately 2 minutes after adding the powder reagent.\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eIf the water used for this procedure has an alkalinity value greater than 250 mg\/L CaCO\u003csub\u003e3\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003eor acidity value greater than 150 mg\/L CaCO\u003csub\u003e3\u003c\/sub\u003e, the colour of the sample may develop only partially, or may rapidly fade. To resolve this, neutralise the sample with diluted HCl or NaOH.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354486091927,"sku":"HI-701","price":71.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi701_300caf6c-822a-477d-baf5-ad9ce80349fc.jpg?v=1624280638"},{"product_id":"hanna-instruments-717-high-range-phosphate-colorimeter-checker®hc","title":"Hanna Instruments-717 High Range Phosphate Colorimeter - Checker HC","description":"\u003cp\u003eIdeal for aquariums.\u003c\/p\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e0.0 to 30.0 ppm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003csvg viewbox=\"0 0 13.987 10.123\" height=\"10.123\" width=\"13.987\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cg transform=\"translate(-305.142 -213.686)\"\u003e\u003cpath transform=\"translate(0)\" d=\"M309.809,222a3.892,3.892,0,0,1,.262-.345q3.768-3.778,7.539-7.551a2.462,2.462,0,0,1,.289-.267.763.763,0,0,1,1.017.106.788.788,0,0,1,.043,1.025,2.512,2.512,0,0,1-.188.2l-8.273,8.275a.831.831,0,0,1-1.394-.01q-1.854-1.854-3.707-3.71a.8.8,0,0,1-.182-.915.727.727,0,0,1,.818-.43,1.16,1.16,0,0,1,.535.3c1,.985,1.989,1.983,2.979,2.98A3.938,3.938,0,0,1,309.809,222Z\" class=\"a\"\u003e\u003c\/path\u003e\u003c\/g\u003e\u003c\/svg\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ePhosphate\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe contoured style of the Hanna Instruments-717 Phosphate, high range Checker is designed to fit in the palm of your hand.\u003c\/p\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 20 tests. Use code Hanna Instruments-717-25 (40 tests) for future purchases.\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv id=\"description\" class=\"section-row section 1\"\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003cp\u003eThe large LCD is easy to read and the auto shut-off feature ensures the battery life will not be drained if you forget to turn it off.\u003c\/p\u003e\n\u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAquaculture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eGeneral water quality testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eWaste water applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eDrinking water analysis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAgriculture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section four\"\u003e\n\u003cdiv class=\"section-text col-xs-12 col-sm-7 add-p-r rem-p-l\"\u003e\n\u003ch3\u003eMain Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSupplied with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eStarter pack of reagents x 20 tests \u003cstrong\u003e(re-ordering information: Hanna Instruments-717-25 x 40 tests)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlso available: \u003cstrong\u003eHanna Instruments-717-11 Calibration set\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354486124695,"sku":"HI-717","price":71.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/2_fd18fb91-f69b-4837-ab89-b0875db9a7cd.jpg?v=1728299924"},{"product_id":"hanna-instruments-719-magnesium-hardness-handheld-colorimeter-checker®hc","title":"Hanna Instruments-719 Magnesium Hardness Handheld Colorimeter - Checker®HC","description":"\u003cp\u003eIdeal for wastewater, the Hanna Instruments-719 pocket checker is a simple and accurate way to measure magnesium hardness.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 25 tests. Use code Hanna Instruments-719-25 (25 tests) for future purchases.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eThe Hanna Instruments-719 pocket checker is a simple and accurate way to measure magnesium hardness.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eThe Hanna Instruments-719 uses an adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, EDTA colorimetric method. The reaction between magnesium and reagents causes a reddish violet tint in the sample.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate and easy to use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e±0.20 ppm ±5% of reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e0.01 ppm resolution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned to work with Hanna reagents\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eLarge easy to read digits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAuto shut-off\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eWater purification systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eHeating and cooling systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eDrinking water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eWastewater\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eSupplied with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e2 sample cuvettes with caps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eReagents for 25 tests (re-ordering information Hanna Instruments-719-25 x 25 tests)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSyringe with tip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003ePlastic beaker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 1.5V AAA battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cp\u003eAlso available: Calibration set Hanna Instruments-719-11.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354486419607,"sku":"HI-719","price":85.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi719_0f0dafc3-f3d3-423e-b64b-eac0ed1eaa80.jpg?v=1624280642"},{"product_id":"hanna-instruments-720-calcium-hardness-handheld-colorimeter-checker®hc","title":"Hanna Instruments-720 Calcium Hardness Handheld Colorimeter - Checker HC","description":"\u003cp\u003eThe Hanna Instruments-720 Calcium Hardness Checker is a simple, accurate and cost effective way to measure low ranges of copper in water.\u003c\/p\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 25 tests. Use code Hanna Instruments-720-25 (25 tests) for future purchases.\u003c\/p\u003e\n\u003cp\u003eThe Hanna Instruments-720 Calcium Hardness Checker is a simple, accurate and cost effective way to measure low ranges of copper in water.\u003c\/p\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, the Hanna Instruments-720 provides quick, accurate results in four easy steps.\u003c\/p\u003e\n\u003cp\u003eHanna Instruments-720 uses an adaptation of the standard methods for the Examination of Water and Wastewater, 18th edition, Calmagite method. The reaction between calcium and the reagents cause a reddish-violet tint in the sample.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWater purification systems\u003c\/li\u003e\n\u003cli\u003eHeating and cooling systems\u003c\/li\u003e\n\u003cli\u003eDrinking water\u003c\/li\u003e\n\u003cli\u003eWastewater\u003c\/li\u003e\n\u003cli\u003ePlating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eSmall palm-sized design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate from ± 0.20 ppm ±5% of reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eAuto power off after 10 minutes of inactivity\u003c\/li\u003e\n\u003cli\u003eBuilt-in timer for timed reaction readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eOrder Information\u003c\/h3\u003e\n\u003ch3\u003eThe Hanna Instruments-720 Calcium Hardness Checker is supplied with sample cuvettes with caps (2), calcium hardness reagent starter kit x 25 (re-ordering information Hanna Instruments-720-25 x 25 tests), syringes with tips (2), plastic beaker, battery, instructions and quick start guide.\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAlso available: Calibration set Hanna Instruments-720-11.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354486452375,"sku":"HI-720","price":79.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1_8eb01646-8461-434c-90a9-cfc0c9abe132.jpg?v=1728567735"},{"product_id":"hanna-instruments-721-high-range-iron-handheld-colorimeter-checker®hc","title":"Hanna Instruments-721 High Range Iron Handheld Colorimeter - Checker®HC","description":"\u003cp\u003eThe Hanna Instruments-721 pocket checker for iron gives quick, accurate results at the price of a chemical test kit.\u003c\/p\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 6 tests. Use code Hanna Instruments-721-25 (25 tests) for future purchases.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal for:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSwimming pools and spas\u003c\/li\u003e\n\u003cli\u003eAquaculture\u003c\/li\u003e\n\u003cli\u003eQuality control and ground water monitoring\u003c\/li\u003e\n\u003cli\u003eAgriculture and small holdings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section 1\" id=\"description\"\u003e\n\u003cstrong\u003eHanna Instruments-721 High Range Iron Handheld Colorimeter - Checker®HC\u003c\/strong\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003cbr\u003e\n\u003cp\u003eAbout 6.3% of the earth crust is made of iron with 43% of this amount held in the soil. As a result, iron is naturally present in most water supplies.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eLeft in the water, iron will not only stain pipework and swimming pool surfaces, or poison aquatic life, it will also affect the water taste and cause problems with animal feed lines.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eTesting should therefore form an important part of any water monitoring process - particularly if you are checking your pool, watching the quality of water in your fish tank or needing to monitor water run-off.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cstrong\u003eKey features\u003c\/strong\u003e\n\u003cdiv class=\"section-row section four\"\u003e\n\u003cdiv class=\"section-text col-xs-12 col-sm-7 add-p-r rem-p-l\"\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate and easy to use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003ePhenanthroline method\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eAccuracy ±0.04 mg\/L (ppm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e0.01 mg\/L (ppm) resolution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned to work with Hanna reagents\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eLarge easy to read digits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eAuto shut-off\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFits into the palm of your hand\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstrong\u003eSupplied with:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e1 black cuvette cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eStarter pack of 6 reagents for Iron (re-ordering information Hanna Instruments-721-25 x 25 tests)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 1.5V AAA battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354486485143,"sku":"HI-721","price":71.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi721_1a2c8da1-b02b-4597-b66c-cecca14216bb.jpg?v=1624280667"},{"product_id":"hanna-instruments-715-ammonia-medium-range-handheld-colorimeter-checker®hc","title":"Hanna Instruments-715 Ammonia Medium Range Handheld Colorimeter - Checker®HC","description":"\u003cp\u003eIdeal for fresh water aquariums, the Hanna Instruments-715 Checker is a simple, accurate, and cost effective way to measure medium ranges of Ammonia in fresh water.\u003c\/p\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 25 tests. Use code Hanna Instruments-715-26 for future purchases.\u003c\/p\u003e\n\u003cp\u003eThe Hanna Instruments-715 Checker is a simple, accurate, and cost effective way to measure medium ranges of ammonia in fresh water.\u003c\/p\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, the Hanna Instruments-715 provides quick, accurate results in four easy steps.\u003c\/p\u003e\n\u003cp\u003eThe Hanna Instruments-715 uses an adaptation of the ASTM Manual of water and Environmental Technology D1426-93, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample.\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSmall palm-sized design\u003c\/li\u003e\n\u003cli\u003eAccurate from ±0.05ppm ±5% of reading\u003c\/li\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003cli\u003eUses a single AAA battery\u003c\/li\u003e\n\u003cli\u003eAuto Power Off after 10 minutes in inactivity\u003c\/li\u003e\n\u003cli\u003eBuilt-in timer for timed reaction readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal for:\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWater Quality\u003c\/li\u003e\n\u003cli\u003eEducation\u003c\/li\u003e\n\u003cli\u003eAquariums\u003c\/li\u003e\n\u003cli\u003eEnvironmental\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrder Information:\u003c\/h3\u003e\n\u003cp\u003eThe Hanna Instruments-715 Checker is supplied with 2 cuvettes and caps, Ammonia MR reagents x 25 tests (Hanna Instruments-715-25), 1 x 1.5V AAA battery, and an instruction manual.\u003c\/p\u003e\n\u003cp\u003eNot included: Calibration set Hanna Instruments-715-11.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354493825175,"sku":"HI-715","price":85.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/image_12296_d909a973-0073-4ba0-9f62-b902a1dd4388.jpg?v=1624280734"},{"product_id":"hanna-instruments-733-ammonia-high-range-handheld-colorimeter-0-0-99-9ppm-checker®hc","title":"Hanna Instruments-733 Ammonia High Range Handheld Colorimeter (0.0-99.9ppm) Checker®HC","description":"\u003cp\u003eThe Hanna Instruments-733 Checker is a simple, accurate, and cost effective way to measure high ranges of ammonia in fresh water.\u003c\/p\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 10 tests. Use code Hanna Instruments-733-25 for future purchases.\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003eThe Hanna Instruments-733 Checker is a simple, accurate, and cost effective way to measure high ranges of ammonia in fresh water.\u003cbr\u003e\n\u003cdiv class=\"section-row section 1\" id=\"description\"\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, the Hanna Instruments-733 provides quick, accurate results in four easy steps.\u003c\/p\u003e\n\u003cbr\u003eThe Hanna Instruments-733 uses an adaptation of the ASTM Manual of water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample.\u003cbr\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eIdeal for:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWater Quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eEducation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eWastewater\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFreshwater Aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eEnvironmental\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section four\"\u003e\n\u003cbr\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003cdiv class=\"section-text col-xs-12 col-sm-7 add-p-r rem-p-l\"\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003ePalm-sized design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e±1.0ppm ±5% of reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDedicated to a single parameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eUses a single AAA battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eAuto Power Off after 10 minutes in inactivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in timer for timed reaction readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354493923479,"sku":"HI-733","price":85.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1_5a7ae54f-5317-4ba1-aafb-e3bebe7d21b3.jpg?v=1739525688"},{"product_id":"hanna-instruments-711-total-chlorine-handheld-colorimeter-checker®hc","title":"Hanna Instruments-711 Total Chlorine Handheld Colorimeter - Checker®HC","description":"\u003cp\u003eIdeal for swimming pools, spas and aquariums.\u003c\/p\u003e\n\u003cp\u003eChlorine is the most common water disinfectant. Once in water, it presents as free chlorine and total chlorine.\u003c\/p\u003e\n\u003cp\u003eChecker®HC is supplied with reagents for 6 tests. Use code Hanna Instruments-711-25 (25 tests) for future purchases.\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv id=\"description\" class=\"section-row section 1\"\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003ch3\u003eIdeal for swimming pools, spas and aquariums\u003c\/h3\u003e\n\u003cp\u003eChlorine is the most common water disinfectant. Once in water, it presents as free chlorine and total chlorine.\u003c\/p\u003e\n\u003cp\u003eFree chlorine is the chlorine that is available in the water to tackle bacteria. As the process of disinfection takes place, the levels of free chlorine will reduce. Total chlorine is the measurement of free and used chlorine in the water.\u003c\/p\u003e\n\u003cp\u003eIf the total chlorine is high but the free chlorine is low or non-existent, then there is insufficient chlorine in the water to deal with the levels of contamination.\u003c\/p\u003e\n\u003cp\u003eFree chlorine is the most frequently tested of the two chemicals. By checking for the two as part of a rigorous testing procedure, adjustments in chlorine levels can be made quickly and easily and a high level of disinfection can be easily maintained.\u003c\/p\u003e\n\u003cp\u003eCan also be used to determine chlorine levels in fish tanks for optimum fish and plant health. Use alongside recommended dechlorinators.\u003c\/p\u003e\n\u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSwimming pools and spas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eWater and quality control checks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eDisinfection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eWaste water treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAquaculture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section four\"\u003e\n\u003cdiv class=\"section-text col-xs-12 col-sm-7 add-p-r rem-p-l\"\u003e\n\u003ch3\u003eMain Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSupplied with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eStarter pack of reagents x 6 (re-ordering information: Hanna Instruments-711-25 x 25 tests)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlso available: Calibration set Hanna Instruments-711-11\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"HI-711","offer_id":56408857051509,"sku":"HI-711","price":71.35,"currency_code":"GBP","in_stock":true},{"title":"HI-711-EXPIRED 09\/25","offer_id":56408857084277,"sku":"HI-712-EXPIRED","price":30.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1_87a1c325-1af2-45ad-9481-2cb1b4a23bbe.jpg?v=1730902827"},{"product_id":"hanna-instruments-hi-707-nitrite-low-range-handheld-colorimeter-checker-hc","title":"Hanna Instruments HI-707 Nitrite Low Range Handheld Colorimeter - CheckerHC","description":"\u003cp\u003eMeasuring 0 to 600 ppb NO2-N. Suitable for use in all types of aquaculture (marine, salt and fresh water), nitrite can lead to tissue damage, illness and death in aquatic life, so regular checks can help aquarists to identify rising nitrite levels before fish begin to suffer. Uses an adaptation of the EPA Diazotization method 354.1.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSmall palm-sized design\u003c\/p\u003e\n\u003cp\u003eAccurate from ±20 ppb ± 5% of reading\u003c\/p\u003e\n\u003cp\u003eDedicated to a single parameter\u003c\/p\u003e\n\u003cp\u003eUses a single AAA battery\u003c\/p\u003e\n\u003cp\u003eAuto Power Off after 10 minutes inactivity\u003c\/p\u003e\n\u003cp\u003eBuilt-in timer for timed reaction readings\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupplied with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2 cuvettes and caps\u003c\/p\u003e\n\u003cp\u003eReagent starter kit (6 packets of nitrite LR reagent) - re-ordering information: HI-707-25\u003c\/p\u003e\n\u003cp\u003e1 x 1.5V AAA battery\u003c\/p\u003e\n\u003cp\u003eInstruction manual\u003c\/p\u003e\n\u003cp\u003eSku:HI-707\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":41124123672727,"sku":"HI-707","price":71.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hanna_instruments_hi_707_nitrite_low_range_handheld_colorimeter_checker_hc.jpg?v=1634130970"},{"product_id":"hanna-instruments-hi-708-nitrite-high-range-handheld-colorimeter-checker-hc","title":"Hanna Instruments HI-708 Nitrite High Range Handheld Colorimeter - Checker HC","description":"\u003cp\u003eMeasuring 0 to 150 ppm NO2-N using an adaptation of the ferrous sulphate method. This checker is useful for initial measurements of nitrite when trying to establish good ammonia\/nitrite\/nitrate control. Suitable for all types of aquaculture (marine, salt and fresh water), the ultimate aim is to decrease nitrite levels so the low range or ultra-low nitrite Checker can be used for optimum tank health.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSmall palm-sized design\u003c\/p\u003e\n\u003cp\u003eAccurate from ±3 ppm ±5% of reading\u003c\/p\u003e\n\u003cp\u003eDedicated to a single parameter\u003c\/p\u003e\n\u003cp\u003eUses a single AAA battery\u003c\/p\u003e\n\u003cp\u003eAuto Power Off after 10 minutes in inactivity\u003c\/p\u003e\n\u003cp\u003eBuilt-in timer for timed reaction readings\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe HI-708 Checker is supplied with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2 cuvettes and caps\u003c\/p\u003e\n\u003cp\u003ereagent starter kit (6 packets of reagent) - re-ordering information HI-708-25\u003c\/p\u003e\n\u003cp\u003e1 X 1.5X AAA battery\u003c\/p\u003e\n\u003cp\u003eInstruction manual\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":41124170268823,"sku":"HI-708","price":71.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hanna_instruments_hi_708_nitrite_high_range_handheld_colorimeter_checker_hc.jpg?v=1634131838"},{"product_id":"hanna-instruments-hi-713-phosphate-low-range-handheld-colorimeter-checker-hc","title":"Hanna Instruments HI-713 Phosphate Low Range Handheld Colorimeter - Checker HC","description":"\u003cp\u003eThe Hanna Instruments Phosphate Low Rnage Handheld Colorimeter Checker, is a compact and reliable tool designed for accurate measurement of phosphate levels in water. Ideal for water systems uch as aquaculture, wastewater treatment and freshwater systems, this colorimeter ensures precise testing to help maintain water quality. \u003c\/p\u003e\n\u003cp\u003eIts user friendly design allows you to easily analyse samples with just a few simple steps. \u003c\/p\u003e\n\u003cp\u003eLightweight and portable, this handheld colorimeter is perfect for fieldwork and laboratory use, making it an essential tool for professionals and enhusiasts alike. \u003c\/p\u003e\n\u003cp\u003eChecker range: 0.00 to 2.50 ppm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal for coral reef tanks and fresh and salt water aquariums\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePhosphate directly inhibits calcification by corals and coralline algae - even at low levels. The health of plants in freshwater aquaria will also be impaired by raised levels of phosphate in the water. Phosphate naturally occurs as waste decomposes in coral reef, salt and fresh water aquariums. While it does not directly harm fish when levels are high, resulting green algae growth can deplete the oxygen levels in water. Corals can lose their colour due to the effects of brown algae.\u003c\/p\u003e\n\u003cp\u003eThe optimum phosphate level - particularly for reef tanks - is often quoted as zero or 0.05 mg\/L (ppm)\u003c\/p\u003e\n\u003cp\u003eWith its ability to register the presence of phosphate in salt and fresh water at extremely low levels, the new Hanna Phosphate Checker offers a real 'must-have' addition to the fish lover's equipment chest.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMain Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTesting is quick and easy\u003c\/p\u003e\n\u003cp\u003eHigh precision results - more accurate than chemical test kits\u003c\/p\u003e\n\u003cp\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/p\u003e\n\u003cp\u003eFully portable, fitting easily into both palm and pocket\u003c\/p\u003e\n\u003cp\u003eFits nicely into your palm or pocket\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupplied with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2 sample cuvettes\u003c\/p\u003e\n\u003cp\u003eCuvette cap\u003c\/p\u003e\n\u003cp\u003eStarter pack of reagents x 6 (re-ordering information HI-713-25 x 25 tests)\u003c\/p\u003e\n\u003cp\u003e1 x 1.5 AAA battery\u003c\/p\u003e\n\u003cp\u003eInstructions\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/testallwater.co.uk\/collections\/hanna-reagents\/products\/hanna-instruments-713-25-reagents-for-hanna-instruments-713-phosphate-pocket-checker-x-25-tests\" target=\"_blank\"\u003eReplacement Reagents For HI-713\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eSku: HI-713\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":41124241014935,"sku":"HI-713","price":71.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/3_2c87e937-ccf3-4e8b-b95d-f49d513e0c74.jpg?v=1733304963"},{"product_id":"hanna-instruments-hi-7024-copper-checker","title":"Hanna Instruments HI-7024 Copper Checker","description":"\u003cp\u003eIf the concentration of free copper is too high in bathing, blond hair can turn green. The maximum concentration of free copper in a bath is 0.8 mg\/l. The HI-7024 is a simple, accurate and affordable way to measure copper values. This checker uses an adaption of the EPA method. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupplied with \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eX 2 Cuvettes with Cap\u003c\/p\u003e\n\u003cp\u003eReagents\u003c\/p\u003e\n\u003cp\u003eBattery in hard case\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRange: 0.06 to 5.00 mg\/l \u003c\/p\u003e\n\u003cp\u003eResolution: 0.01 mg\/l \u003c\/p\u003e\n\u003cp\u003eAccuracy: ± 0.05 mg\/l, ±5 % value \u003c\/p\u003e\n\u003cp\u003eMethod: Colorimetric \u003c\/p\u003e\n\u003cp\u003eBattery: 1.5 V AAA\u003c\/p\u003e\n\u003cp\u003eDimensions: 81.5 x 61 x 37.5 mm\u003c\/p\u003e\n\u003cp\u003eSku:HI-7024\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":42419283362050,"sku":"HI-7024","price":71.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1_0912fece-78b5-4964-a15b-f08554ff5e46.png?v=1778575168"},{"product_id":"hanna-instruments-hi-7214-iron-checker","title":"Hanna Instruments HI-7214 Iron Checker","description":"\u003cp\u003eToo much iron in swimming water causes brown spots, cloudiness, or brown water. The maximum concentration of iron in a bath is 0.2 mg\/l. The Hi-7214 provides a fast and accurate way to determine iron values in four easy steps. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupplied with \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eX 2 Cuvettes with Cap\u003c\/p\u003e\n\u003cp\u003eReagents\u003c\/p\u003e\n\u003cp\u003eBattery in hard case\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRange: 0.08 – 5.00 mg\/l \u003c\/p\u003e\n\u003cp\u003eResolution: 0.01 mg\/l\u003c\/p\u003e\n\u003cp\u003eAccuracy: ±0.04 mg\/l, ±2% value\u003c\/p\u003e\n\u003cp\u003eMethod: Phenanthroline\u003c\/p\u003e\n\u003cp\u003eBattery: 1.5 V AAA\u003c\/p\u003e\n\u003cp\u003eDimensions: 81.5 x 61 x 37.5 mm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSku: HI-7214\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"HI-7214","offer_id":56565032845685,"sku":"HI-7214","price":71.35,"currency_code":"GBP","in_stock":true},{"title":"HI-7214-EXP-11\/2025","offer_id":56565032878453,"sku":"HI-7214-11\/2025","price":49.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/117910_a05b4b3c-8074-45c7-bad8-b51fe1971b930.jpg?v=1660218135"},{"product_id":"hanna-instruments-hi-779-ph-checker","title":"Hanna Instruments HI-779 pH Checker","description":"\u003cp\u003eIntroducing a new way of measuring pH. The HI-779 is a checker photometer with which you can quickly, easily, and moreover accurately measure pH in swimming water, according to the recognized phenol red method. The checker does not have to be calibrated with buffers, as with a tester, and there is also no electrode to be stored in storage solution. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupplied with \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eX 2 Cuvettes with Cap\u003c\/p\u003e\n\u003cp\u003eReagents\u003c\/p\u003e\n\u003cp\u003eBattery in hard case\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/testallwater.co.uk\/collections\/hanna-reagents\/products\/hanna-instruments-hi-779-25-ph-reagents-for-hi-779\" target=\"_blank\"\u003eReplacement Reagents for HI-779\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRange: 6.3 to 8.6 pH\u003c\/p\u003e\n\u003cp\u003eResolution: 0.1 pH\u003c\/p\u003e\n\u003cp\u003eAccuracy: ±0.2 pH @ 25®C\u003c\/p\u003e\n\u003cp\u003eMethod: Phenol Red\u003c\/p\u003e\n\u003cp\u003eBattery: 1.5 V AAA\u003c\/p\u003e\n\u003cp\u003eDimensions: 81.5 x 61 x 37.5 mm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSku:HI-779\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":42419314360578,"sku":"HI-779","price":73.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1_5e91bc8d-a75f-4d81-a6cd-39957ebc5449.jpg?v=1749111758"},{"product_id":"hanna-instruments-phosphate-hr-checker-hc-calibration-checking-set","title":"Hanna Instruments Phosphate HR Checker HC Calibration Checking Set","description":"\u003cp\u003eHanna optional Checker HC Calibration Sets provide a simple solution to validating your Checker HC.\u003c\/p\u003e\n\u003cp\u003eEach high quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a Certificate of Analysis.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eHI-717-11 is a high-quality set of calibration standards that allows users to validate the Phosphate High Range Checker® HC – HI-717. The HI-717-11 includes one sealed cuvette for zero ppm phosphate and one cuvette that is tinted to an equivalent 15.0 +\/- 1.5 ppm phosphate sample @ 25°C.\u003c\/p\u003e\n\u003cp\u003eThe calibration check set is produced using reagent grade chemicals in a temperature controlled environment. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContent\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1 PC x 10ml HI717-11A\u003c\/p\u003e\n\u003cp\u003e1 PC x 10ml HI717-11B\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSku: HI-717-11\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":43336992489730,"sku":"HI-717-11","price":21.76,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/118409_2f705d6c-5870-46b8-a3cb-966f7ebcb2b50.jpg?v=1666268162"},{"product_id":"hanna-instruments-hi-747-copper-low-range-colorimeter-checker","title":"Hanna Instruments HI-747 Copper Low Range Colorimeter Checker","description":"\u003cp\u003eThe HI-747 Copper low range Checker is a simple, accurate and cost effective way to measure low ranges of copper in water.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, the HI-747 provides quick, accurate results in four easy steps.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003eHI-747 uses an adaptation of the EPA method. The reaction between copper and the bicinchoninate reagent causes a purple tint in the sample.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal for\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWater quality\u003c\/p\u003e\n\u003cp\u003eEducation\u003c\/p\u003e\n\u003cp\u003ePlating\u003c\/p\u003e\n\u003cp\u003eWastewater\u003c\/p\u003e\n\u003cp\u003eEnvironmental\u003c\/p\u003e\n\u003cp\u003eFreshwater Aquariums\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSmall palm-sized design\u003c\/p\u003e\n\u003cp\u003eAccurate from ±10 ppb ±5% of reading\u003c\/p\u003e\n\u003cp\u003eDedicated to a single parameter\u003c\/p\u003e\n\u003cp\u003eAuto power off after 10 minutes of inactivity\u003c\/p\u003e\n\u003cp\u003eBuilt-in timer for timed reaction readings\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupplied With\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003esample cuvettes and caps (2),\u003c\/p\u003e\n\u003cp\u003eCopper LR reagent starter kit for 6 tests (re-ordering information HI-747-25 x 25 tests),\u003c\/p\u003e\n\u003cp\u003ebattery,\u003c\/p\u003e\n\u003cp\u003einstructions\u003c\/p\u003e\n\u003cp\u003equick start guide.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003eSku: HI-747\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":43701948547330,"sku":"HI-747","price":80.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1_49fc8170-847e-4a64-b954-78266767b09a.png?v=1779119640"},{"product_id":"hanna-instruments-copper-high-range-colorimeter-checker-hc","title":"Hanna Instruments HI-702 Copper High Range Colorimeter Checker HC","description":"\u003cp\u003eIdeal for freshwater \u0026amp; saltwater aquariums. The HI-702 Copper high range Checker is a simple, accurate and cost effective way to measure high ranges of copper in water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal for\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWater quality\u003c\/p\u003e\n\u003cp\u003eEducation\u003c\/p\u003e\n\u003cp\u003ePlating\u003c\/p\u003e\n\u003cp\u003eWastewater\u003c\/p\u003e\n\u003cp\u003eEnvironmental\u003c\/p\u003e\n\u003cp\u003eFreshwater Aquariums\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSmall palm-sized design\u003c\/p\u003e\n\u003cp\u003eAccurate from ±0.05ppm ±5% of reading\u003c\/p\u003e\n\u003cp\u003eDedicated to a single parameter\u003c\/p\u003e\n\u003cp\u003eAuto power off after 10 minutes of inactivity\u003c\/p\u003e\n\u003cp\u003eBuilt-in timer for timed reaction readings\u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eSupplied With \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003esample cuvettes and caps (2),\u003c\/p\u003e\n\u003cp\u003eCopper HR reagent starter kit x 6 tests (re-ordering information: Hi-702-25 x 25 tests),\u003c\/p\u003e\n\u003cp\u003ebattery,\u003c\/p\u003e\n\u003cp\u003einstructions\u003c\/p\u003e\n\u003cp\u003equick start guide.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 5.00 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy @ 25°C\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.05 ppm ± 5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Source\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eLED @ 575 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Detector\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eSilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e(1) 1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-off\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e86 x 61 x 37.5 mm (3.2 x 2.4 x 1.5\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e64 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMethod\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eadaptation of the EPA method. The reaction between copper and the bicinchoninate reagent causes a purple tint in the sample\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSku: HI-702\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":43702831022338,"sku":"HI-702","price":80.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hanna_instruments_702_copper_high_range_checker_hc.jpg?v=1684745954"},{"product_id":"hanna-instruments-hi-705-silica-low-range-colorimeter-checker-hc","title":"Hanna Instruments HI-705 Silica Low Range Colorimeter Checker HC","description":"\u003cp\u003eIdeal for water quality testing. The Hanna Instruments HI-705 handheld checker is a simple, accurate, and cost effective way to measure low ranges of silica.\u003c\/p\u003e\n\u003cp\u003eThe HI-705 uses an adaptation of the ASTM D859 method of heteropoly blue method. The reaction between silica and reagents causes a blue tint in the sample.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\/Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSmall palm-sized design\u003c\/p\u003e\n\u003cp\u003eAccurate from ±0.03ppm ± 5% of reading\u003c\/p\u003e\n\u003cp\u003eDedicated to a single parameter\u003c\/p\u003e\n\u003cp\u003eUses a single AAA battery\u003c\/p\u003e\n\u003cp\u003eAuto Power Off after 10 minutes in inactivity\u003c\/p\u003e\n\u003cp\u003eBuilt-in timer for timed reaction readings\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWater Quality\u003c\/p\u003e\n\u003cp\u003eEducation\u003c\/p\u003e\n\u003cp\u003eEnvironmental\u003c\/p\u003e\n\u003cp\u003eWater Treatment (Boilers\/Cooling Towers)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupplied With \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2 cuvettes and caps,\u003c\/p\u003e\n\u003cp\u003ereagent starter kit x 12 tests (re-ordering information: HI-705-25 x 25 tests),\u003c\/p\u003e\n\u003cp\u003e1 x 1.5V AAA battery,\u003c\/p\u003e\n\u003cp\u003einstruction manual.\u003c\/p\u003e\n\u003cp\u003eSku:HI-705\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":43702847537410,"sku":"HI-705","price":85.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/7_ff497677-d7a5-470e-afec-e815bb977389.jpg?v=1726130269"},{"product_id":"hanna-instruments-hi-739-fluoride-high-range-colorimeter-checker","title":"Hanna Instruments HI-739 Fluoride High Range Colorimeter Checker","description":"\u003cp\u003eThe HI-739 pocket checker is a simple and accurate way to measure high ranges of fluoride in fresh water.\u003c\/p\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e0.0 to 20.0 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Title","offer_id":43706500907266,"sku":"HI-723","price":82.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1_45ce9a92-5d1b-4a5a-b3dc-6962eaddffb7.jpg?v=1728984740"},{"product_id":"hanna-instruments-hi-726-nickel-high-range-checker","title":"Hanna Instruments HI-726 Nickel High Range Checker","description":"\u003cp\u003eNickel is extensively used in electroplating, the manufacturing of steel, electronic devices, ceramics and coloured glasses. 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