Hanna Instruments HI781 Marine Low Range Nitrate Checker HC
The HI781 is specifically made to gauge low nitrate concentrations in saltwater aquariums. The optimal range for saltwater, reef aquarium care is 0.00 to 5.00 ppm (mg/L). The Hanna Marine Nitrate Checker® employs a fixed wavelength LED and silicon photo detector, similar to professional apparatus that uses a light source, filter, and light sensing detector to deliver the precision of professional instruments at the cost-effective pricing of a chemical test kit.
- Compact, Portable Design
- Built-in Timer
- Saltwater Compatible