Features:Intelligent Radiator Thermostatic ValveThe room temperature can be adjusted intelligently as needed, and it can be controlled by mobile phone before going home. Excellent picture quality. Create thermostat groups for centralized control and device sharing support.[Energy saving] When the temperature drops by 6C within 4 minutes, the window will be opened, and the valve will be automatically closed.Multi-functionThe smart radiator thermostatic valve has a variety of practical functions, including window detection function, antifreeze function, child lock function, etc.Easy InstallationThe radiator thermostat is easy to install and can be done without draining the heating water or interfering with the heating system. It can be installed horizontally or vertically. It runs very quietly and won't disturb your sleep at all.Remote Control and Voice ControlControl your heating anytime, anywhere with Tuya Smart Life app. After linking your app account to your Amazon or Google account, you can use Amazon Alexa or Google Assistant for smart home integration and voice control.[Programmable] Programmable/manual mode switching, adjustable in 6 time periods per day.High Accuracy1 accuracy keeps the temperature at the level you set. Note: Note: This radiator thermostat must be used with the wireless gateway, otherwise the radiator thermostat will not work. [Gateway needs to be purchased separately, this product does not include gateway]Specification:Material: PVCwhite colorTemperature sensor: NTCTemperature accuracy: 1Display range: 060Temperature setting: 560Applicable temperature: 050Frequency: 2.4GStandard installation size: M30*1.5mmPower: 2 * AA batteries (not included)Product size: 95.77*55.0mm/3.8*2.2inPackage size: 10.3*7.5*6.0cm/4.1*3.0*2.4inPackage Weight: 80g/2.8oz Packing List:1 * Thermostatic Radiator Valve1 * A set of installation accessories1 * User Manual (English)