[APP Control] Smart thermostat, you can control it through your mobile phone before going home. (APP: Tuya) [Manual/Auto Mode] You can freely choose manual or auto mode. [Accurate Temperature] Internal sensor floor sensor, which can sense ambient temperature and floor temperature. Automatically obtain temperature with an accuracy of 1. [Weekly Programmable] The thermostat supports different temperature settings for 6 time modes every day. [Window Opening Function] When the window is opened, causing the room temperature to drop by more than 6 within 4 minutes, the screen displays "OP" and closes the valve. If the room temperature rises by 3, this function can be disabled or automatically disabled after more than 48 minutes, or it can be manually disabled. [Anti-scale Function] If the radiator is not fully opened once within two weeks or long-term use cause the valve to be blocked due to excessive scale, the radiator not be to be used. In order to that the radiator can be used normally, the controller automatically fully open the valve once every two weeks for , during which the screen display "Ad", and resume operation after the operation is completed. [Child Lock] The keyboard lock function is designed to prevent children from misoperating. [Use] Suitable for radiator heating. Perfect for home, office, shopping mall, hotel, etc.<br><br>Application: This product is a smart water heating controller with GZB, low power consumption, suitable for the control valve controller of water system water heating. The thermostat has six time periods a day. The temperature of six time periods can be set every day to control the heater, and weekly cycle programming is adopted. Through the comparison results of ambient temperature and set temperature, the mobile phone APP controls the water heater, and manual control and time control can be freely . Electrical specifications: 1. Power supply mode: 2xAA 1.5V alkaline batteries (LR6) (excluding batteries) 2. Temperature sensor: 3. Temperature accuracy: 1 4. Display range: 0-60 5. Temperature setting: 5-35 6. Applicable temperature: 0-50 7. Communication protocol: GZB 8. Frequency: 2.4G NOTE:The Zigbee hub is required (not included) Colour:White Material:ABS<br><br>Package Contents: 1 * temperature control valve<br><br>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.