1.[Tuya Smart APP WIFI remote control]You can connect this product to Tuya Smart/Smart Life APP via WiFi directly without a Zigbee Gateway.You can control the temperature of your home anytime and anywhere, so that you can enjoy the most comfortable temperature when you get home. 2.[Alexe/Google Voice control]In addition to control the product from your phone or manually, you can also control through for and Google Assistant via voice control, freeing your hands and making your life more convenient. 3.[Programmable Function]You can set different programming modes for each day of the week according to your schedule. There are 4 time periods per day to set.It can help you save more energy. 4.[Data Logging Function]The Tuya Smart APP will record the valve opening degrees and the temperature of the room, allowing you to understand the working status of the product more intuitively. More thoughtful features: Child Lock: Prevent children from changing settings; Rotatable screen: allows you to read it from different angles; Loss of temperature detection: Detects that doors or windows are not closed tightly; Timing Start: Prevents minerals in the water from clogging the valve. Technical Specifications: Power: 3x1.5V AA alkaline batteries (not included) Current Consumption: 100mA Max Protection Degree: IP20 Display accuracy: 0.5 Working environment temperature: -5~50C Default range of temperature adjustment: 5~30C Thread size: M30x1.5/M28x1.5 Insulating condition: Normal environment Porduct Hightlight: Zigbee gateway is no longer needed !!! You can directly connects this WIFI TRV to the smart phone , One APP can control more than 20 pcs prodcuts and realizes the whole linkage of your smart home devices. Simply add this product to the App, easier your life. Material: plastic colour: White Package Contents: 1 x Thermostatic Radiator Valve 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.