Colorimeter – Checker® HC Saltwater Aquarium Ultra Low Range Nitrite HI764

Stop struggling to get accurate results for your saltwater aquarium with our simple handheld colorimeter. 
Our nitrite colorimeter fills the gap between nitrite test kits and advanced instrumentation. Standard test kits have limited accuracy since they depend on the human eye to determine colors. Our handheld colorimeter eliminates the trouble of matching to a color chart by providing a direct saltwater nitrite result.
Stock up on reagents! This checker includes a starter kit for 6 tests.



Our portable handheld colorimeter goes where you go.
Achieve your nitrite results easily with simple, one-button design.
Don’t worry about matching the right color, our colorimeter does it for you