Hanna Calcium Checker HI-758 Marine

Hanna Calcium Checker HI-758 Marine

Hanna Calcium Checker HI-758 Marine

Calcium presence in water supplies results from passage over deposits of limestone, dolomite, gypsum and gypsiferous shale. Its concentration may extend from 0 to several hundred milligrams per liter,depending on its source and treatment. Calcium is necessary in plant and animal nutrition since it is an essential constituent of bones, shells and plant structures.

CA $69.95

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The HI 758 Calcium Checker HC is extremely simple to use. First, zero the instrument by adding Reagent A and deionized water. Insert into the HI 758 and press the button. Next, remove the vial and add Reagent B and shake to dissolve. Reinsert into the Checker HC and press the button to read the calcium concentration in ppm on the display. 

Weighing a mere 64 g (2.25 oz.), the Checker HC easily fits into the palm of your hand or pocket!.

  • Ideal for Aquaculture and Aquarium testing!
  • Easier to use and more accurate than chemical test kits!.
  • Large, easy to read digits.
  • Auto shut off.
  • Operated by a single AAA battery
  • Use for quick and accurate on the spot analysis.
  • Single button operation: zero and measure.


  • Range: 200 to 600 ppm 
  • Resolution: 1 ppm
  • Accuracy: +/- 6% of Reading
  • Battery Type: 1 - 1.5V AAA


  • Calcium Checker
  • 2 - Sample Cuvettes and Caps
  • Reagent Start Kit for 25 Tests
  • Battery
  • Instruction Manual

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