Calcium Checker HI758 frozen accurate and cost-effective way to

accurate and cost-effective way to measure calcium

reducing the possibility of coral bleaching

Pocket-sized for easy travel

Add the I/O Breakout Box to your current aquarium controller an easy way to connect up to six external switch inputs

Masstick is a self-adhesive tab ready for use in the aquarium

Calcium Checker HI758 frozen accurate and cost-effective way toThe HI758U Checker HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure calcium. Required for the development of calcium carbonate skeletons of coral reefs, calcium is a crucial component of marine waters. Designed as a more accurate alternative to chemical test kits, the HI758U provides quick, accurate results in a few easy steps. What's Included HI758 Checker 2 sample cuvettes with caps 1 bottle of calcium reagent