The Hanna Marine Nitrate HR (ppm) Colorimeter Checker is a simple, accurate, and cost-effective way to measure nitrate from 0.00 to 5.00 ppm (as NO3–) in your saltwater aquarium. For samples containing 5.0 to 50.0 ppm nitrate, follow the approved dilution procedure.

Note: We can not ship this Test Kit expedited or to Hawaii, Alaska or Puerto Rico.

Nitrate is a by-product of the Nitrogen cycle. Excessive amounts of nitrates in a reef aquarium can promote the growth of undesirable organisms including algae and dinoflagellates while insufficient amounts can lead to starvation in which SPS and other corals will show signs including the loss of color and paleness.

It comes with the reagent. You can buy more Hanna High Range Marine Nitrate Colorimeter Checker Reagent.

• Includes: (1x) HI782 Checker HC; (1x) Sample cuvette and (2x) caps; (1x) Marine Nitrate High Range Starter Kit (reagents for 10 tests);(1x) 3mL Pasteur pipette;(1x) 1.5V AAA Alkaline battery
• Range: 0.0 to 75.0 ppm (as NO3-); Resolution: 0.1 ppm; Precision: ±2 ppm ±5% of reading @ 77°F (25°C)
• Battery - 1.5V AAA (included)
• Auto-Off - After 10 minutes of non-use
• Dimensions - 3.2" x 2.4" x 1.5"
• Simple, one-button operation makes getting your nitrate results a snap.
• Quickly get your results without using a color chart.