The low maintenance, economical CDA-22 Chlorine Dioxide Analyzer from Electro-Chemical Devices, Inc. (ECD) is ideal for supporting raw water treatment filtration systems. Featuring a panel mounted plumb-and-play design and automatic flowcontrol, the user-friendly CDA-22 is a complete Chlorine Dioxide (ClO2) measurement system.The CDA-22 Chlorine Dioxide Analyzer ensures that ClO2 levels are properly maintained as part of the water source filtration system, preserving safety and water quality. Easy to install and maintain, the CDA-22 Chlorine Dioxide Analyzer can run for up to one year between electrolyte/membrane changes. It 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, and calibration is accomplished with DPD comparison.