WIFI Smart Thermostat With LED Display Application & Voice Control Indoor Constant Temperature Controller Programmable Child Lock Description: This product is a smart thermostat with low power consumption, suitable for water system plumbing control valve controllers. The smart thermostats cannot be controlled while the child lock activated, avoiding misuse of children due to curiosity. Features: [Smart Control]Supporting remote control by application, voice control by Amazon Alexa, and Assistant. [Useful]The device supports Wi-Fi fast distribution network, no additional gateway is required. [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: White Material: Plastic Setting Range: 5-29.5°C Limitation Range: -10 to 100°C Input Current: 100mA conservation class: IP20 Battery: 3*1.5V AA Battery (not included) Function: Child lock, antifreeze, alarm, low battery reminder Package Size：11.2*7*6.6cm Package Weight: 222g Packing List: 1 * Smart Thermostat 1 * User manual Note: The model does not need a gateway