The Chemtrac DO Probe is the first of its kind in the world to offer automatic in-situ sensor verification as an option. The HydroACT Series is able to reduce maintenance by automatically checking its sensor operation at user defined time intervals. Calibration on the In-Situ sensor is normally required only once per annum so with the automatic sensor verification option and the self clean option the sensor may not need to be inspected at all for a full year.
