HANNA Marine Calcium Checker® HC-HI758

The Hanna Marine Calcium Checker^® bridges the gap between simple chemical test kits and professional instrumentation.
Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color.
Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration.
Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars.
The Hanna Marine Calcium Checker^® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.

• Compact, Portable Design
• Built-in Timer
• One-Button Operation

The HI758 Checker^® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure calcium.
Required for the development of calcium carbonate skeletons of coral reefs, calcium is a crucial component of marine waters. Designed as a more accurate alternative to chemical test kits, the HI758 provides quick, accurate results in four easy steps:

The Checker HC is simple to use

1. ‘Zero’ the Checker HC as required in specific procedure
2. Add reagent to your water sample
3. Place the vial into your Checker HC
4. Press the button and read the results

It’s that easy!

*To zero: 1ml of reagent A is added to deionized/distilled water as a blank.

Features:

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for: Aquaculture & Aquariums, Water Quality

Specifications:
Calcium Range	200 to 600 ppm
Calcium Resolution	1 ppm
Calcium Accuracy	±6% of reading
Calcium Method	adaptation of the Zincon method.
Photometer/Colorimeter Light Source	LED @ 610 nm
Photometer/Colorimeter Light Detector	silicon photocell
Battery Type/Life	(1) 1.5V AAA
Automatic Shut-Off	after ten minutes of non-use
Environment	0 to 50°C (32 to 122°F); RH max 95% non-condensing
Weight	64 g (2.25 oz.)
Dimensions	81.5mm x 61mm x 37.5mm (3.2″ x 2.4″ x 1.5”)
Ordering Information	HI758 Calcium Checker is supplied with (2) sample cuvettes with caps, calcium reagent starter kit for 25 tests, dropper,1 ml syringe with tip, 100 microliter pipette with tips, plastic pipette, battery, instructions and quick start guide.