Red Sea’s CALCIUM PRO Reef Test Kit is an advanced calcium titration test, measuring the level of calcium in your reef aquarium to an exceptionally high accuracy of 5 ppm. This test kit enables the accurate dosing of Red Sea’s Reef CALCIUM + Foundation A (calcium/strontium) and Trace Colors supplements, which are part of the complete Red Sea Reef Care Program. Specifications Test Name Element Accuracy Range Test Type No. of test Calcium Pro Ca 5 ppm ∞ Titration 75 Titrator included inside – easy to use, single hand and high precision titrator. Red Sea CALCIUM PRO Reef Test Kit includes durable, chemical resistant plastic case & analytical grade glass vials. CALCIUM PRO Reef Test Kit Package size: 75 tests