Marine Calcium Checker® HC – HI758
The HI758 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 HI758 provides quick, accurate results in four easy steps.
or 4 payments of $21.25 with 
Marine Calcium Checker® HC Calibration Check Set – HI758-11
HI758-11 is a high-quality set of calibration standards that allows users to validate the Marine Calcium Checker® HC – HI758. The HI758-11 includes one sealed cuvette for zero ppm calcium and one cuvette that is tinted to an equivalent 400 +/- 20 ppm calcium sample @ 25°C. The calibration check set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.
or 4 payments of $7.50 with
Marine Calcium Checker® HC Reagents (25 Tests) – HI758-26
The HI758-26 are the replacement reagents for the HI758 Marine Calcium Checker® HC. These high-quality reagents are manufactured in Hanna Instruments state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.
or 4 payments of $10.00 with