Hanna Instruments Freshwater Alkalinity Checker HC® Calibration Check Set 0–500 ppm CaCO3 (HI775-11)

Hanna Instruments Freshwater Alkalinity Checker HC® Calibration Check Set 0–500 ppm CaCO3

The HI775-11 is a two-cuvette calibration check set designed to validate the performance of the Hanna Instruments Freshwater Alkalinity Checker® HC (HI775), which measures alkalinity in the range of 0 to 500 ppm CaCO3. It gives pool owners and technicians a quick, straightforward way to confirm that their handheld colorimeter is reading accurately before taking water quality measurements. Every set ships with a Certificate of Analysis for full traceability.

Compatibility

This calibration check set is exclusively designed for use with the HI775 Freshwater Alkalinity Checker® HC. Always confirm your checker model before ordering.

What’s included

The HI775-11 includes one sealed blank cuvette (0 ppm CaCO3) used to zero the instrument, and one pre-tinted cuvette equivalent to a 100 ± 10 ppm CaCO3 alkalinity sample at 25 °C. Both cuvettes are reusable and offer long shelf-life stability. The included Certificate of Analysis provides the lot number, reference values, and expiration date for reliable traceability.

Why genuine matters

Produced in Hanna Instruments’ own manufacturing facility using reagent-grade chemicals in a temperature-controlled environment, the HI775-11 ensures the precision and consistency you would expect from a leading metrology brand. Using a genuine Hanna calibration check set ensures your HI775 checker delivers trustworthy alkalinity results — critical for maintaining safe, balanced pool or drinking water.