The Marine pH Checker® HC® Calibration Check Set - HI780-11 provides a simple solution to validating the Marine pH Checker® HC® - HI780. 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 to provide traceability when certifying the Checker®HC®.
