HI-720 Calcium Hardness Handheld Colorimeter - Checker HC
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 is 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.
- Water purification systems
- Heating and cooling systems
- Drinking water
- 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
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
|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|