Hanna Instruments HI-REEFKIT Marine Testing Kit
The HI-REEFKIT is a complete kit that covers four of the key parameters for water quality testing in coral reef tanks. This digital reef test kit includes the HI-772 Alkalinity Checker, HI-758 Calcium Checker, HI-774 Ultra Low Range Phosphate Checker and HI-98319 Salinity Tester to enable you to accurately test your aquarium water.
Regular reef water testing is important for aquarium maintenance, providing clear information to help you balance your water and maintain fish and coral health. The Hanna reef test kit combines some of the most important parameters for testing reef tank water as part of our wider aquarium Checkers range.
Make sure your marine tank or even a natural reef is in perfect health with the Hanna Reef Kit.
This great professional kit includes:
- HI-772 Seawater/Marine Alkaline Checker®HC(dKh)
- HI-758 Marine Calcium Checker® HC
- HI-774 Marine Phosphate ULR Checker® HC
- HI-98319 Marine Salinity Tester
- HI-774-25 Marine Phosphate ULR Reagents x 25
- HI-70024P Salinity Calibration x 25 (35.00ppt @ 25˚C)
- HI-70436M Distilled Water 230ml
About the testers
HI-772 Seawater/Marine Alkalinity (dKH) Colorimeter - Checker®HC
Ideal for salt water aquariums and coral reef tanks.
Designed exclusively for saltwater aquariums, the HI-772 checker offers a quick, easy and highly accurate method of measuring alkalinity in degrees of calcium hardness, dKH.
Alkalinity helps to maintain a stable pH, a vital factor for most aquatic life. Corals also need an adequate level of alkalinity in order to support healthy growth: if levels are too low, corals cannot precipitate and form their skeletons; if levels fluctuate too much or too quickly, growth can become impaired.
The more precise and stable the levels, the better the results. With regular, precise monitoring, fluctuations in levels can be quickly corrected, giving your corals the best chance of success.
HI-98319 Marine Waterproof Salinity Tester
The HI-98319 waterproof salinity and temperature tester is perfect for any saltwater aquarium. A more accurate alternative to refractometers, this tester uses conductivity to determine salinity levels of natural and artificial seawater. Ideal for testing salinity in salt water aquariums, it is quick and easy to use and provides digital readout of both salinity and temperature.
Salinity results are displayed in either parts per thousand (ppt), Practical Salinity Units (PSU), or Specific Gravity (SG).
Our marine salinity tester is supplied complete with batteries and solutions allowing you to start measuring right away. Also displays temperature.
HI-758 Marine Calcium Handheld Colorimeter - Checker®HC
Ideal for salt water aquariums and coral reef tanks.
Designed to measure calcium in reef tanks, the Hanna Calcium Checker is perfect for corals and marine life.
HI-774 Marine Phosphate ULR Checker HC colorimeter
The HI-774 Ultra Low Range Phosphate Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphate from 0.00 to 0.90 ppm.
Phosphate is an important parameter to measure in aquaculture and aquariums. Levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life.
HI-774-25 Marine Phosphate ULR Reagents – ascorbic acid x 25.
These reagents are designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate.
HI-70436 Distilled Water 3.75L
HI-70436 De-ionised water, 3.75 L, for your research needs.
- Air-tight seal to ensure the quality of the solution
HI-70024P Salinity Calibration (35.00ppt @ 25˚C) 25 x 20ml
HI-70024p is a premium quality 35.00 ppt marine salinity calibration solution for seawater salinity in 25 x 20ml sachets.
Safety Data Sheets
When using any form of chemical, such as Hanna reagents, it is important you download the relevant safety data sheet and make yourself aware of any precautions you should take when handling the chemical. You can access our library of safety data sheets and download a copy by following the link below.
Please note that the '-' in HI- products should be removed from all searches to find the correct information.
Specifications
| HI-772 Seawater/Marine Alkalinity Handheld Colorimeter - Checker®HC | |
|---|---|
| Range | 0.0 to 20.0 dKH |
| Resolution | 0.1 dKH |
| Accuracy | ±0.3 dKH ±5% of reading |
| Light Source | LED @ 610 nm |
| Method | colorimetric method |
| Environment | 0 to 50°C; RH max 95% non-condensing |
| Battery Type | (1) 1.5V AAA |
| Auto-off | after ten minutes of non-use |
| Dimensions | 86 x 61 x 37.5 mm |
| Weight | 64g |
| Method | Colorimetric method. The reaction causes a distinctive range of colours from yellow to green to blue to develop |
| HI-758 Marine Calcium Handheld Colorimeter - Checker®HC | |
| Range | 200 to 600 ppm |
| Resolution | 1 ppm |
| Accuracy @ 25°C | ±6% of reading |
| Light Source | light emitting diode @ 610 nm |
| Light Detector | Silicon Photocell |
| Environment | 0 to 50 °C (32 to 122 °F); max 95% RH non-condensing |
| Battery Type | (1) 1.5V AAA |
| Auto-off | after 10 minutes of non-use |
| Dimensions | 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5") |
| Weight | 64 g (2.25 oz.) |
| Method | adaptation of the zincon method |
| HI-774 Marine Phosphate ULR Checker HC colorimeter | |
| Range | 0 to 999 ppb |
| Resolution | 1 ppb |
| Accuracy | ±15 ±5% of reading @ 25ºC |
| Light Source | LED @ 525 nm |
| Light Detector | Silicon photocell |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
| Battery Type | (1) 1.5V AAA |
| Auto-off | After 3 minutes of non-use and 2 mins after reading |
| Dimensions | 86 x 61 x 37.5 mm |
| Weight | 64 g |
| Method | Adaptation of Standard Ascorbic Acid Method. The reaction between the phosphate and the reagent causes a blue tint in the sample. |
| HI-98319 Marine Salinity Tester | |
| Range: | |
| ppt | 0.0 to 70.0 ppt (g/L) |
| PSU | 0.0 to 70.0 PSU |
| S.G. | 0.001-1.041 |
| Temperature | 0.0 to 50.0 °C/32.0 to 122.0°F |
| Resolution | |
| ppt | 0.1 ppt (g/L) |
| PSU | 0.1 PSU |
| S.G. | 0.001 |
| Temperature | 0.1 °C/1 °F |
| Accuracy | |
| ppt | ±1.0 ppt for 0.0 to 40.0 ppt; ±2.0 ppt for 40.0 to 70.0 ppt |
| PSU | ±1.0 PSU for 0.0 to 40.0 PSU; ±2.0 PSU for 40.0 to 70.0 PSU |
| S.G. | ±0.001 |
| Temperature | ±0.5 °C (±1.0 °F) |
| Method | |
| ppt | International Oceanographic Tables, 1966 |
| PSU | Standard Methods for the Examination of Water and Wastewater, 2520 B, Electrical Conductivity Method |
| S.G. | Standard Methods for the Examination of Water and Wastewater, 2520 C, Density Method |
| Calibration Solution | HI-70024 (35.00 ppt) |
| Calibration | Automatic, single point 35.00 ppt |
| Temperature Compensation | Automatic from 5 to 50.0 °C |
| Environment | 0 to 50°C; RH max 100% |
| Battery Type | CR2032 3V Li-ion (1) |
| Battery Life | Approximately 100 hours of continuous use |
| Weight | 68g without battery |
| HI-774-25 Marine Phosphate ULR Reagents | Packets |
| Quantity | 25 |
| Method | Adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic Acid method. The reaction between phosphate and the reagent causes a blue tint in the sample. |
Downloads
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.