The SALUS ARV10RFM-3 Zigbee Battery Radiator Actuator allows you to precisely control your radiator room heating to the exact temperature and from anywhere. The ARV10RFM-3 Zigbee Battery Radiator Actuator replaces the traditional wax element TRV actuator with a smart electrical device to open and close the radiator valve, and is controlled by an AWRT10RF thermostat. The thermostat wirelessly controls the operation and is remote from the radiator so it monitors the actual ambient room temperature to ensure optimum heating accuracy. A single thermostat can even control several ARV10RFM-3s in the same room or zone to maintain the desired room temperature and increase energy efficiency.