The Marine Calcium Checker® HC Calibration Check Set – HI758-11 provides a simple solution to validating the Marine Calcium Checker® HC – HI758 that has a range of 200 to 600 ppm calcium.

This high-quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a Certificate of Analysis.

The Certificate of Analysis provides the lot number, reference values and expiration date for traceability when certifying the Checker®HC.

Approx 25 Test per packet