HI781 Saltwater Nitrate Low Range Checker
Get highly accurate results with the HI781 Marine Nitrate Low Range Colorimeter. With a digital read out, there is no more struggling to determine colors visually. This nitrate tester's compact design fits in your pocket or stores easily in your shop.
- Easier to use and more accurate than chemical test kits.
- One-button operation makes getting your nitrate results simple.
- Great for saltwater aquariums.