2. A Tuya ZigBee Wireless Gateway 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 smart home devices.Simply add your gateway to the App,then add your radiator actuator to your gateway in the Smart Life App,even smart automation to other smart devices in APP by creating various scenes for flexible controls on smart phones. 1. New Soft Touching Design with Humanized Upgrades: New mini elegant design with extremely clear LED data display on its body and perspective for easy reading; two sections of AA batteries powered,which is a special valve using cooperatively with heating radiator to control the closing and opening of the pipe for more comfortable room temperature. 4. Programmable Schedule with Weekly Programming Selection: Supports manual set up 5+2, weekly schedule with 5 periods for option ,providing you with the maximum convenience for different situation and setting customized schedule for your house temperature.Holiday mode,automatic mode, and manual mode available for added convenience;Window open detection and offset temperature are both featured for this TRV controller for added convenience. 3. Internal Sensor Design for More Accurate Measurement: Functional extremely well with internal sensor on the valve that provides accurate readings for house temperature,ensures much more convenient and intelligent control to your smart lifestyle with intelligent control on smart phones with Smart Life App supported.Eco temperature and low battery notification ensures a real-sense of low power consumption for the of this . 5. This new actuator is featured asnew mini design with extremely clear LED data display on its body and perspective for easy reading.It is compatible with Tuya Smart App that enables low battery tip under Eco mode for real-sense saving., Weight: 0.4960400895 pounds, Manufacturer: Wesafrae