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HANNA HI 758 Checker HC Colorimeter - Marine Calcium - 200 to 600 ppm

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HI 758 Checker HC Colorimeter - Marine Calcium - 200 to 600 ppm

The Hanna Checker HC is a handheld colorimeter that delivers the accuracy and resolution of a professional-grade instrument, with the simplicity and affordability of a basic chemical test kit. This pocket-sized tester will save you hundreds of dollars in hi-tech equipment, while eliminating the need for complicated calibrations and maintenance.

This particular model quickly and accurately measures Calcium (200 to 600 ppm) in marine and reef aquariums to help you maintain optimal conditions for your precious inhabitants. It features user-friendly single button operation, and displays its precise readings on a large and easy-to-read LCD.

Weighing in at only 64 g (2.25 oz), the Hanna Checker HC is an ultra-portable water tester. This compact unit features an ergonomic design that fits perfectly in your pocket or the palm of your hand. It includes the single AAA battery required for operation, as well as an automatic shut-off function that triggers after 10 minutes of inactivity to preserve battery life.

The HI 758 Calcium Checker HC comes complete with hard-shell travel case, sample cuvettes with caps (2), calcium reagent starter kit for 25 tests, dropper, 1 ml syringes with tips (2), AAA battery (1), instructions, and quick start guide.


Range: 200 to 600 ppm
Resolution: 1 ppm
Accuracy @ 25°C: ±6% of reading
Light Source: Photodiode @ 610 nm
Light Detector: Silicon photocell
Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Auto-off: After 10 minutes of inactivity
Method: Adaptation of the Zincon Method. 2.4" x 1.5" x 3.2"

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