Hanna Instruments (M) Sdn Bhd
11A, Jalan PJS 11/20,
Bandar Sunway,
46150 Petaling Jaya,
Selangor, Malaysia.
Penang Branch Office
Hanna Instruments (M) Sdn Bhd
N0. 303-2-27, Krystal Point,
Jalan Sultan Azlan Shah,
11900 Sungai Nibong,
Penang, Malaysia.
+604-638 4558
+604-645 4558
penang@hannamalaysia.com
Sabah Branch Office
Hanna Instruments (M) Sdn Bhd
No. 4-1, 1st Floor,
Block E, Plaza Kingfisher,
Jalan Plaza Kingfisher 5,
88450 Kota Kinabalu,
Sabah, East Malaysia.
088-382 941
088-382 942
sabah@hannamalaysia.com
Johor Branch Office
Hanna Instruments (M) Sdn Bhd
No. 49-1, 1st Floor,
Jalan Molek 3/10,
Taman Molek,
81100 Johor Bahru,
Johor, Malaysia.
+607-351 8998
johor@hannamalaysia.com
HI758 Saltwater Aquarium Calcium Colorimeter 每 Checker® HC
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How to Use the HI758 Marine Calcium Checker

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:
*To zero: 1 ml of reagent A is added to deionized/distilled water as a blank.
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Saltwater Aquariums, Aquaculture, Water Quality, Environmental, Education
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. |