Chlorine Tester
Handheld photometer for free and total chlorine with a 0.00 to 3.50 ppm range and one-button operation for immediate, accurate field results.
The Free & Total Chlorine 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.


With AK40 Tester you can routinely monitor Chlorine levels to ensure that water is free of harmful bacteria.
Due to its disinfection, oxidation and bleaching properties, this chemical is used in many different applications such as Drinking water, Food processing, Wastewater and Swimming pools.

Applications
| Measurement Specifications | |||
| Parameter | Range | Resolution | Accuracy |
|---|---|---|---|
| Chlorine | 0.00 to 3.50 ppm | 0.01 ppm | ± 0.05 ppm +3% reading |
| General Specifications | |
| Operating humidity | 10 to 90 % RH (non-condensing) |
| Power supply | 9 VDC (1 × 9 V battery) |
| Dimensions | 73 x 77 x 40 mm |
| Weight | 120 g (with battery) |
| Sample volume | 10 mL |
| Light source | LED |
| Wavelength | 525 nm |
| Measuring cell | Glass cuvette |
| Auto power-off | After 2 minutes |
| Display | OLED |
| Languages | Portuguese, English, Spanish, Italian |
| Operating temperature | 0 to 50 °C |
| Measurement method | Adaptation of the US EPA 330.5 colorimetric method and Standard Method 4500-Cl G |
Replacement parts, calibration solutions, and maintenance supplies for the AK40.
Tell us what you measure and where. Our team will recommend the right instrument and configure your complete kit.
Expert consultation
Speak directly with application engineers
Custom kit configuration
Instrument, probe, solutions, and carrying case
Global shipping
Direct or through authorized distributors