Features THERMOSTATIC VALVE HEAD: Without external energy, valve can independently adjust the temperature of each room, maintaining a constant room temperature requirement. With energy saving, easy to use ACCURATE CONTROL: Feel the room temperature through the liquid temperature sensing component in the valve head, so as to change the water flow, in order to adjust and control the room temperature DOUBLE O RING SEAL: Double reliable seal, prevent leakage, ensure that the spool works in the state of no water, avoid spool clogging and corrosion HIGH STRENGTH RESET SPRING: Possess strong execution, stable control, to avoid long term stop heating valve adhesion plugging M30X1.5MM UNIVERSAL CONNECTION INTERFACE: Easy to connect and change, suitable for all M30x1.5mm valve bodies Specification: Item Type: Radiator Valve Power Supply Voltage: 230VAC Initial Current: 50mA Working Current: 6.5mA Power Consumption: 1.5W Interface: M30x1.5mm Stroke: Approx. 3mm / 0.12in(maximum 4.2mm / 0.17in) Protection Level: IP43 Working Stroke: Approx. 4.5 ~ 5mm / 0.18 ~ 0.2in Maximum Load: 110N Operating Temperature: -20℃~50℃ Storage Temperature: -20℃~70℃ Switch Time: 180 s(on off) Package List: 1 x Radiator Valve 1 x User Manual Package List 1 x Radiator Valve 1 x User Manual