Hanna Instruments-775 Freshwater Alkalinity Colorimeter - Checker®HC
Ideal for fresh water aquariums (not suitable for salt water marine tanks).
The HI-775 Alkalinity Checker for fresh water is a simple, accurate and cost effective way to measure alkalinity in fresh water.
Checker®HC is supplied with reagents for 25 tests.
Use code HI-775-26 for future purchases.
Designed 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.
The Hanna Instruments-775 is ideal for checking water quality, great for educational and environmental applications and for use in freshwater aquaria.
Designed as a more accurate alternative to chemical test kits, the Hanna Instruments-775 provides quick, accurate results in four easy steps. (See below).
The 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.
Please note: 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.
Features:
- Small palm-sized design
- Accurate from ±5ppm ± 5% of reading
- Dedicated to a single parameter
- Uses a single AAA battery
- Auto Power Off after 10 minutes in inactivity
- Built-in timer for timed reaction readings
Ideal for:
- Water Quality
- Education
- Freshwater Aquarium
- Environmental
Order Information:
The 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.
Also available: Hanna Instruments-775-11 Calibration set.
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.