Palintests self-contained Chloro-sense chlorine tester provides quick, simple and accurate testing of a wide range of chlorine concentration levels, performed only with the portable unit, single-use disposable sensors and a small sample of the water to be tested. The patented electrochemical sensor measures both the total and free chlorine levels simultaneously and records the result (along with the temperature of the sample) in under a minute. Neither use of reagents nor careful measuring is required; sensitivity and resolution are equivalent to DPD testing at low concentrations. Linear measurements provide results in the 5-10mg/L range. Sensors are provided separately; each box of electrodes is being supplied with a calibration chip that must be inserted into the Chlorosense before use. http://www.palintest.comsales@palintest.com