Multisensor for T, R.H. and CO2 equivalent + VOC with regulator

Multisensor for T, R.H. and CO2 equivalent + VOC with regulator. This device measures temperature, relative humidity and CO2 equivalent, and includes a built-in regulator. One variant adds VOC measurement to the same set of readings. Readings feed into ventilation and indoor climate control logic within the KNX system.