Chlorine is the most common water disinfectant and by monitoring chlorine regularly and accurately, serious health and safety risks can be avoided.
The contoured style of the HI-701 Free Chlorine Checker is designed to fit in the palm of your hand. The large LCD is easy to read and the auto shut-off feature ensures the battery life will not be drained if you forget to turn it off.
Can also be used to determine chlorine levels in fish tanks for optimum fish and plant health. Use alongside recommended dechlorinators.
Swimming pools and spas
Fruit, vegetable and salad washing
Testing is quick and easy
High precision results - more accurate than chemical test kits
Auto shut-off feature means the Checker cannot be left on by mistake
Fully portable, fitting easily into both palm and pocket
2 sample cuvettes
Starter pack of reagents (re-ordering information - HI-701-25
0 to 50°C (32 to 122°F); RH max 95% non-condensing
(1) 1.5V AAA
After 2 minutes of non-use and after read
81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
64 g (2.25 oz.)
EPA approved DPD method Standard Method 4500-Cl G.
In some cases, samples may contain other parameters which may interfere with results
Interference may be caused by:
Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese. In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately 2 minutes after adding the powder reagent.
If the water used for this procedure has an alkalinity value greater than 250 mg/L CaCO3or acidity value greater than 150 mg/L CaCO3, the colour of the sample may develop only partially, or may rapidly fade. To resolve this, neutralise the sample with diluted HCl or NaOH.