About This

• 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
• Can measure 120 tests
• Easy to use, accurate, fast test, economic