1.Smart Tuya ZigBee Radiator Actuator Thermostat:New mini design with simple and clear LCD display screen on the body,the radiator thermostat is with LCD digital display screen and two sections of AA batteries powered,which is a valve using cooperatively with heating radiator.Artificially set indoor temperature, mainly used in the floor heating system to control the closing and opening of the pipe. 2.A Tuya ZigBee Wireless Hub is a Must : A ZigBee wireless hub is a must that connects to the valve many other ZigBee smart and realizes the whole linkage of your devices.Simply your to the App,then your radiator actuator to your in the App. 3.Programmable Schedule with Weekly Programming :Supports manual set up 5+2,6+1 and 7 weekly schedule with 6 periods for option ,providing you with the maximum for different situation and setting customized schedule for your house temperature.Holiday mode,automatic mode,boost mode available. workday and restday mode to meet your own mind. 4.Voice and Remote Control for the Tuya ZigBee Wireless :Supports App remote control via your smart phone, with the hands-free voice control via and Google Assistant after successfully connecting your valve to Tuya /Smart Life App on the basis of one Tuya ZigBee Wireless . 5.Open Window Detection:When room temperature suddenly drop into temp. ,valve will for 15 minutes.After that,if the room temp. is still lower than temp. ,it will keep this mode.Besides,it's easy to read digital display with Celsius temperature. Parameter: Power: 2 x 2 AA x 1.5V alkaline batteries Maximum current:90mA Working environment temperature:-10~60C Display accuracy:0.5 Default range of temperature adjustment:5~35C Probe sensor:NTC(10k)1% Range of temperature display:1~70C Thread size:M30 x 1.5 Insulating condition: Normal environment Running : Set per 1 week as a Maximum route:4.5mm Colour: white Material: plastic Size: 52 x 90mm Package Contents: 1 x Radiator Thermostat Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.