KNX CO2 sensor, brass, LS series, brass classic KNX CO2 sensor, brass classic with integrated bus coupler with air humidity sensor and room temperature controller with integrated 2-way button interface Intended use Measuring CO2 concentration, relative air 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 device box with dimensions according to DIN 49073 Product features Limit value monitoring for CO2 concentration (max. 4 limit values) and air 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 gates for simple linking functions KNX medium: TP 256 KNX nominal voltage: DC 21 ... 32 V SELV KNX current consumption: typically 12.5 mA max. 25 mA (4 s/15 s cyclic) KNX connection: connection terminal Protection class: III Ambient temperature: 5 ... +45 °C Binary inputs Cable length: max. 5 m Cable type: JY(St)Y 2 x 2 x 0.8 mm CO2 sensor Measuring range: 0 ... 2000 ppm Humidity sensor Measuring range: 10 ... 95 % relative humidity (RH) Temperature sensor Measuring range: 5 ... +45 °C