Total Hardness Tester
Handheld photometer for total water hardness (calcium and magnesium), with a 0 to 300 ppm range and one-button operation for direct, accurate results.
The Total Hardness Tester is accurate, affordable, lightweight, yet robust for field use. The tester line of photometers is handy and can be easily transported anywhere you need them to go. The one-button operation makes it simple to use getting immediate and accurate results.
No more struggling to determine colours with Test Kits, our handheld photometers take the hassle out of matching to a colour chart, providing a direct and precise result.
Total Hardness in water is generally the Concentration of Calcium and Magnesium Ions in Water.
Ideal recommended drinking water should have a hardness between 60 ppm and 120 ppm.
Water hardness levels: 0 – 60 mg/l is regarded as soft for most purposes (some processes require far lower); 61 – 120 mg/l is moderately hard; 121 – 180 mg/l is hard. 180 ppm and above very hard
Applications
Field testing for municipal and industrial water treatment monitoring.
| Measurement Specifications | |||
| Parameter | Range | Resolution | Accuracy |
|---|---|---|---|
| Hardness | 0 to 300 ppm | 1 ppm | ± 6 ppm +6% reading |
| General Specifications | |
| Sample temperature | 15 to 35 °C |
| Sample volume | 10 mL |
| Light source | LED |
| Wavelength | 470 nm |
| Measuring cell | Glass cuvette |
| Display | OLED |
| Auto power-off | After 2 minutes |
| Operating temperature | 0 to 50 °C |
| Operating humidity | 10 to 90 % RH (non-condensing) |
| Power supply | 9 V battery |
| Dimensions | 73 × 77 × 40 mm (W × H × D) |
| Weight | 120 g (with battery) |
| Languages | English, Spanish, Italian, Portuguese |
| Measurement method | Adaptation of Standard Methods 2340C |
| Calibration points | 4 points: 0, 100, 200, 300 ppm |
Replacement parts, calibration solutions, and maintenance supplies for the AK48.
Tell us what you measure and where. Our team will recommend the right instrument and configure your complete kit.
Expert consultation
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Custom kit configuration
Instrument, probe, solutions, and carrying case
Global shipping
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