Hanna

Hanna HI758 Marine Calcium Checker

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  • Regular price $99.00


The Hanna Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time-consuming to calibrate and maintain. The Checker® is both accurate and affordable.

Range   200 to 600 ppm
Resolution   1 ppm
Accuracy @ 25°C   ±6% of reading
Light Source   light emitting diode @ 610 nm
Light Detector   Silicon Photocell
Environment   0 to 50 °C (32 to 122 °F); max 95% RH non-condensing
Battery Type   (1) 1.5V AAA
Auto-off   after 10 minutes of non-use
Dimensions   81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5")
Weight   64 g (2.25 oz.)
Method   adaptation of the zincon method