1.New Soft Touching Design with Humanized Upgrades:New mini elegant curve design with extremely graceful arc waist shape and rubber stretch paint, feeling like baby skin that fits well to any decoration styles. Differs from traditional display on the valve body resulting in reading trouble from the installation position,this new version is featured as LED display, no window, and wider perspective on the top of the cover; two sections of AA batteries powered. 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 products and realizes the whole linkage of your devices.Simply add your to the App,then add your radiator actuator to your in the Smart Life App,even smart automation to other smart devices in APP by creating various scenes for flexible controls on smart phones. 3.External Sensor Design for More Accurate Measurement:Functional extremely well with external sensor on the valve that provides accurate readings for house temperature,ensures much more convenient and intelligent control to your smart ;Soft and sensitive touch control on the home screen,together with intelligent control on Smart phones,are both featured for this new zigbee radiator valve. 4.Programmable Schedule with Weekly Programming Selection:Supports manual set up 5+2 weekly schedule with 4 periods for option ,providing you with the maximum convenience for different situation and setting customized schedule for your house temperature.Holiday mode,automatic mode,temphand and manual mode available for added convenience;Energy saving in a real sense with low battery tip and Eco-mode supported. 5.Voice 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 ;Window check and diagram of temperature curve are added in APP for real-time monitoring of room temperature Parameter: Supply: 3 V,2xAA Batteries, Packaging not have battery. Maximum stroke: 4.5mm Accuracy: 0.5C Set Temp. Range: 5~45 C Display temp. Range: 0~70C Ambient Temp.: 0 ~ 45 C Ambient Humidity: 5 ~ 95 % RH (Non Condensing) Storage Temp.: -5~ 45 C Protection Class: IP 20 Buttons: Capacitive Touch Buttons Colour:black Material:plastic Package Contents: 1 x Thermostat Only the above package content, other products are not included. Note: Light reflection 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.