Calcium Checker HI758 frozen Neptune's LDK (Leak Detection Kit)

Neptune's LDK (Leak Detection Kit) includes everything you will need to add leak sensors to your Apex Controller within minutes

Color Changing Mixed Bed DI Resin

Pocket-sized for easy travel

Hanna Instruments HI98319 Marine Salinity Tester measures electrical conductivity (EC) to determine the salinity of natural and artificial seawater

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

Calcium Checker HI758 frozen Neptune's LDK (Leak Detection Kit)The 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