Description
Carbon Dioxide (CO2) transmitters CDD-series with two-beam infrared sensor for the continuous monitoring of the ambient air to detect carbon dioxide concentrations.
The infrared measuring method with integrated temperature and drift compensation stands for highest accuracy, selectivity and reliability despite of the calibration interval of 5 years.
The Carbon Dioxide (CO2) transmitters CDD-series possesses a standard analog output (0)2-10 Vdc or (0)4-20 mA, and an RS-485 interface. 2 relays with adjustable switching thresholds as well as an integrated display are available as options.