Description:This product is a smart thermostat with ZigBee, low power consumption, suitable for water system plumbing control valve controller. Supporting remote control by application is more convenient and easy. Features:Smart Control: Supporting remote control by application, voice control by Amazon Alexa, and Google Assistant.Child Lock: Smart thermostat cannot be controlled while the child lock activated, avoiding misuse of children due to curiosity.Programmable: Programmable device with customized exclusive temperature plan, up to 6 events allowed to be set each day.Energy-saving: After no operation for more than 5s, the device enters sleep mode, which can save energy and prolong battery life.Open Window Detection: Automatically stop heating when the open window is detected. Save more on your heating bill.Specifications:Color: WhiteMaterial: PCSetting Range: 5-35CEnvironment temperature: 0 to 50CSurface temperature: Max 90CInput Current: 100mAProtection class: IP20Battery: 3*1.5V AA Battery (not included)Function: Child lock, antifreeze, low battery reminder, etcPackage Size11.2*7*6.6cmPackage Weight: 215gPacking List:1 * Smart Thermostat1 * User manual