The HI781 Checker® HC (Handheld Colorimeter) is a simple, accurate, and cost-effective way to measure nitrate in your saltwater aquarium.
- Take our portable handheld colorimeter anywhere.
- Simple, one-button design makes getting your results easy.
- Improve your technology and upgrade from your standard test kit.
The HI781-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their HI781 Marine Nitrate Low Range Colorimeter. These reagents follow a colorimetric method in which the reaction between nitrate and the reagent causes a pink/violet tint in the sample.
The Hanna Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time-consuming to calibrate and maintain. The Checker® is both accurate and affordable.
The HI764-25 are the replacement reagents for the HI764 Nitrite Ultra Low Range Checker® HC. These high-quality reagents are manufactured in Hanna Instruments state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.