Hanna Instruments HI782 Marine Nitrate HR Checker

*This is a Hanna Instruments HI782 Marine Nitrate HR Checker. It measures nitrate levels in parts per million (ppm). Comes with all original components for marine aquarium testing. Includes batteries and test tubes. *Measurements with a range up to 75.0ppm *Less complex laboratory grade accuracy - Requires only 1 reagent *Simple, intuitive digital operation *Compact and precise whether at home, at work, or on-the-go