Marine Calcium Checker® HC - HI758
Marine Calcium Checker® HC - HI758
Marine Calcium Checker® HC - HI758
Marine Calcium Checker® HC - HI758
Marine Calcium Checker® HC - HI758

Marine Calcium Checker® HC - HI758

Regular price $159.00 $159.00 Sale

Marine Calcium Checker® HC - HI758

Achieve fast, accurate, water testing results with the Hanna HI758 Marine Calcium Checker® digital colorimeter without having to compare the measurement results to a color chart. The Hanna Marine Calcium Checker uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.

  • Compact, portable design
  • Built-in timer
  • One-button operation

Ideal for: Saltwater Aquariums, Aquaculture, Water Quality, Environmental, Education

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:

*To zero: 1 ml of reagent A is added to deionized/distilled water as a blank.


Easier to use and more accurate than chemical test kits

Dedicated to a single parameter

Small size, big convenience


More Information
Product Name Marine Calcium Checker® HC - HI758
Quote Required Yes
Calcium Range 200 to 600 ppm
Calcium Resolution 1 ppm
Calcium Accuracy ±6% of reading
Calcium Method adaptation of the Zincon method.
Photometer/Colorimeter Light Source LED @ 610 nm
Photometer/Colorimeter Light Detector silicon photocell
Battery Type/Life (1) 1.5V AAA
Automatic Shut-Off after ten minutes of non-use
Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Weight 64 g (2.25 oz.)
Dimensions 81.5mm x 61mm x 37.5mm (3.2" x 2.4" x 1.5”)
Ordering Information HI758 Calcium Checker is supplied with (2) sample cuvettes with caps, calcium reagent starter kit for 25 tests, dropper,1 ml syringe with tip, 100 microliter pipette with tips, plastic pipette, battery, instructions and quick start guide.


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