1Smart 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 special valve using cooperatively with heating radiatorArtificially set indoor temperature, mainly used in the floor heating system to control the closing and opening of the pipe.2A Tuya ZigBee Wireless Hub is a Must : A ZigBee wireless hub is a must that connects to the valve many other ZigBee smart products and realizes the whole linkage of your devicesSimply add your to the App,then add your radiator actuator to your in the App.3Programmable Schedule with Weekly Programming Selection:Supports manual set up 5+2,6+1 and 7 days weekly schedule with 6 periods for option ,providing you with the maximum convenience for different situation and setting customized schedule for your house temperatureHoliday mode,automatic mode,boost mode availableChoose workday and restday mode to meet your own mind.4Voice and Remote Control for the Tuya ZigBee Wireless :Supports App remote control via your smart phone,together 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 .5Open Window Detection:When room temperature suddenly drop into temp. threshold,valve will close for 15 minutesAfter that,if the room temp. is still lower than temp. Threshold,it will keep this modeBesides,it's easy to read digital display with Celsius temperature.Parameter: : 2 x 2 AA x 15V alkaline batteries Maximum current:90mA Working environment temperature:-10~60C Display accuracy:05Default range of temperature adjustment:5~35C Probe sensor:NTC(10k)1%Range of temperature display:1~70C Thread size:M30 x 15Insulating condition: Normal environment Running program: Set per 1 week as a cycle Maximum route:45mmColour: whiteMaterial: plasticSize: 52 x 90mmPackage Contents:1 x Radiator ThermostatOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.