Description
The HI758 Checker® HC (Handheld Colorimeter) offers a straightforward, precise, and economical method for measuring calcium. Calcium is an essential element of marine waters because it is necessary for the growth of the calcium carbonate skeletons of coral reefs.
The HI758 was created as a more precise substitute for chemical test kits and offers prompt, precise results in four simple steps:

*To zero: 1 ml 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
| SKU | HI758 |
|---|---|
| Product Name | Marine Calcium Checker® HC – HI758 |
| Quote Required | Yes |
| 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. |





