HI-720 Calcium Hardness Checker Handheld Colorimeter
In Stock 1 Item available
HI-720
The HI-720 Calcium Hardness Checker is a simple, accurate and cost effective way to measure low ranges of calcium in water.Checker®HC is supplied with reagents for 25 tests. Use code HI-720-25 (25 tests) for future purchases.
The HI-720 Calcium Hardness Checker
A simple, accurate and cost effective way to measure low ranges of calcium in water.
Designed as a more accurate alternative to chemical test kits, the HI-720 provides quick, accurate results in four easy steps.
HI-720 uses an adaptation of the standard methods for the Examination of Water and Wastewater, 18th edition, Calmagite method. The reaction between calcium and the reagents cause a reddish-violet tint in the sample.
Ideal for
- Water purification systems
- Heating and cooling systems
- Drinking water
- Wastewater
- Plating
Key features
- Small palm-sized design
- Accurate from ± 0.20 ppm ±5% of reading
- Dedicated to a single parameter
- Auto power off after 10 minutes of inactivity
- Built-in timer for timed reaction readings
Order Information
The HI-720 Calcium Hardness Checker is supplied with sample cuvettes with caps (2), calcium hardness reagent starter kit x 25 (re-ordering information HI-720-25 x 25 tests), syringes with tips (2), plastic beaker, battery, instructions and quick start guide.
Also available: Calibration set HI-720-11.
Four steps. One click. Instant Readout.
1. ‘Zero’ the Checker®HC with your vial & water sample inside
2. Take the vial out and add your reagent
3. Place your vial into your Checker®HC
4. Press the button and read the results
Use reagents HI-720-25 for HI-720 Calcium Hardness Handheld Colorimeter -Checker®HC x 25 tests
Use Calibration Set HI-720-11 for HI-720 Calcium Hardness Colorimeter - Checker®HC
Safety Data Sheets
When using any form of chemical, such as Hanna reagents, it is important you download the relevant safety data sheet and make yourself aware of any precautions you should take when handling the chemical. You can access our library of safety data sheets and download a copy by following the link below.
Please note that the '-' in HI- products should be removed from all searches to find the correct information.
Read More
| Range | 0.00 to 2.70 ppm | |
| Resolution | 0.01 ppm (mg/L) | |
| Accuracy (@ 25°C) | ± 0.20 ppm ± 5% of reading | |
| Light Source | LED @ 525 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 | |
| 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 Standard Methods for the Examination of Water and Wastewater, 18th edition, Calmagite method. The reaction between calcium and reagents causes a reddish-violet tint in the sample |
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