![CDATA[KNX CO2 sensor, antique brass with integrated bus coupler with humidity sensor and room temperature controller with integrated 2-way button interface Intended use Measuring CO2 concentration, relative humidity and air temperature Output of the measured values as a telegram on the bus, e.g. for controlling fans or window drives via KNX telegrams Individual room temperature control in KNX installations Installation in a device box with dimensions according to DIN 49073 Product features Limit value monitoring for CO2 concentration (max. 4 limit values) and humidity (max. 2 limit values) Dew point alarm e.g. for cooling ceilings and conservatories, to prevent mold formation Two binary inputs for connecting potential-free contacts, e.g. buttons, switches, window contacts Logic gate for simple linking functions KNX medium: TP 256 Nominal voltage KNX: DC 21 ... 32 V SELV Current consumption KNX: typ. 12.5 mA max.]]>