The analyzer is designed to measure Chlorine Dioxide in concentrations ranging from 0.05-20 ppm CIO2. It is ideal for application in municipal water systems, industrial cooling and rinse water, wastewater or other fresh water samples. Easy to install and maintain, the unit incorporates a CIO2 sensor, automated flow control device and analyzer/controller mounted on a PVC panel. Installation is complete after connecting the sample and drain lines, power and outputs. The low-maintenance analyzer can run for up to one year between electrolyte/membrane changes. Calibration of the unit is accomplished with DPD comparison.