Now you can easily monitor the essential parameters of NH3/NH4, NO3, NO2, pH, and KH in your marine aquarium with the Marine Care Test Kit from Red Sea. This complete multi-test pack includes 100 colorimetric tests for Ammonia with an accuracy of 0.2 ppm, 100 colorimetric tests for Nitrate with an accuracy of 2 ppm, 60 colorimetric tests for Nitrite with an accuracy of 0.05 ppm, 100 colorimetric tests for pH with an accuracy of 0.2 ppm, and 55 titration tests for Alkalinity with an accuracy of 1 dKH/0.36 meq/L. Red Sea's Marine Care Program provides you with the necessary tools for testing as well as an instruction sheet to follow; found inside of your box.