Handheld Colorimeter Marine Calcium (HI758)

Accurately check your reef tanks calcium level with the Hanna HI758 Calcium Checker.

Three simple steps to results. The Hanna Calcium Checker bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Hanna Calcium Checker, press the button and read the results. Done.

Dedicated to a single parameter - Designed to work with HANNA's liquid reagents. Uses 10 mL glass cuvettes.

• Range: 200 to 600 ppm
• Resolution: 1 ppm (mg/L)
• Precision: ±6% of reading
• Light Source: LED @ 610 nm
• Light Detector: Silicon photocell
• Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
• Battery Type: (1) 1.5V AAA
• Auto-off: After 10 minutes of non-use and after read
• 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