BVAV-2 is a variable/constant flow device with a Belimo compact actuator that features an integrated measurement unit and regulator. The airflow device is supplied calibrated from the factory where selected max. and min. flows are programmed. The flows can be changed manually on site with the ZTH handheld device or with a mobile phone (NFC). BVAV-2 can be ordered with several different communication options such as Modbus RTU, BACnet MS/TP and KNX.