Hanna HI758 Marine Calcium Checker

Description

The HI758 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Calcium Checker® HC.  the HI758 will determine the concentration from the colour that is produced ge: 200 to 600 ppm calcium

• Accuracy: ±6% of reading (at 25°C/77°F)
• Resolution: 1 ppm
• Method: Adaptation of the Zincon method (produces a blue tint for measurement)
• Light Source: LED @ 610 nm
• Light Detector: Silicon photocell
• Power: 1 x AAA battery (auto shut-off after 10 minutes of non-use)
• Dimensions & Weight: Compact and lightweight – 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5″); only 64 g (2.3 oz.) – fits easily in your hand or pocket
• Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
• Operation: Simple single-button use (zero and measure)

• Purpose: It provides a simple, precise, and cost-effective way to test calcium concentrations (typically in the range of 200–600 ppm), which is essential for coral growth and skeleton formation in reef aquariums.
• Usage steps (simplified):
  1. Zero the device with a blank (deionized water + reagent).
  2. Add a small sample of aquarium water and reagents.
  3. Insert the cuvette and read the digital result