Hanna Instruments-721 High Range Iron Handheld Colorimeter - Checker®HC
The Hanna Instruments-721 pocket checker for iron gives quick, accurate results at the price of a chemical test kit.
Checker®HC is supplied with reagents for 6 tests. Use code Hanna Instruments-721-25 (25 tests) for future purchases.
Ideal for:
- Swimming pools and spas
- Aquaculture
- Quality control and ground water monitoring
- Agriculture and small holdings
About 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.
Left 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.
Testing 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.
- Accurate and easy to use
- Phenanthroline method
- Accuracy ±0.04 mg/L (ppm)
- 0.01 mg/L (ppm) resolution
- Designed to work with Hanna reagents
- Large easy to read digits
- Auto shut-off
- Fits into the palm of your hand
- 2 sample cuvettes
- 1 black cuvette cap
- Starter pack of 6 reagents for Iron (re-ordering information Hanna Instruments-721-25 x 25 tests)
- 1 x 1.5V AAA battery
- Instructions
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.