The measuring system of our KNX climate sensor records the carbon dioxide value measured via the CO2 sensor and the room climate with the values for temperature and humidity. Based on these values, the dew point temperature and absolute air humidity are calculated. Regulations can be made via a PI or two-point control, optionally with pulsed outlets. Initiation of the KNX sensors is made via the ETS (EIB Tool Software) in connection with the respective application program. The devices are not programmed when delivered. All functions are parameterized via the ETS and programmed. The controllers can be switched on or off via activation or blocking items via the KNX bus.