Test calcium (Ca) and magnesium (Mg) level in water. Suitable for freshwater and brackish water with the salinity between 0 - 5 part per thousand (ppt).
For freshwater and marine aquarium and aquaculture, pond water, ground water, drinking water
Ca range from 0 – 200 part per million (ppm) with the resolution of 20 ppm per drop. Mg range from 0 – 960 ppm with the resolution of 12.15 ppm per drop
