Smart BACnet CO2, temperature, humidity and VOC room sensors with accurate low power measurement technology. Advanced colour touchscreen option makes the device to operate as network user interface. Inputs and outputs can be used as extension to BMS (building management systems) i.e. as I/O-modules. Add optional occupancy (PIR) measurement. BACnet MS/TP communication with COV capability. Two PI control loops for built-in control functionality. Powerful Windows and Smartphone configuration tools.