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Hanna Checker HC Handheld Colorimeter - Calcium

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No more inaccurate test kits! Hanna Checker HC handheld colorimeter takes a 10mL sample of water and accurately represents a digital reading of aquarium water calcium content. Accurate to plus or minus .04 ppm. Great for quick, accurate on the spot tests and analysis. Auto-shut off maintains battery life. Single-button operation - simply choose zero or measure. Operates with one AAA battery. Includes carrying case and two sample bottles.


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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 into the vial. Insert into the HI 758 and press the button. Next, remove the vial and add 0.1ml of sample and add Reagent B; shake to dissolve. Reinsert into the Checker HC and press the button to read the calcium concentration in ppm on the display.

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