Fangrui Product Details Description: [voice Control] Compatible With Alexa, Amazon Echo, Google Home And Tmall Genie. [app Control] The Smart Thermostat Can Be Controlled By Mobile Phone Before Going Home. (app: Tuya) [manual/automatic Mode] You Can Freely Choose Manual Or Automatic Mode. [accurate Temperature] Obtain The Temperature Automatically, With An Accuracy Of 1c. [weekly Programmable] The Thermostat Supports Different Temperature Settings In 6 Time Modes Every Day. [child Lock] The Keyboard Lock Function Is Designed To Prevent Misuse By Children. Usesuitable For Gas Boiler/hot Water Heating. Perfectly Suitable For Homes, Offices, Shopping Malls, Hotels, Etc. Specifications: Type: Wifi Smart Thermostat Protection Grade/shell Material: Ip20/flame Retardant Pc Power Supply Mode: Two Aaa Batteries, Usb (type-c-6p Dc5v) Current Load: 3a / 3a Temperature Accuracy: 1 Temperature Setting: 5-90 Button: Touch The Button Product Size: 135* 23.2 * 87.5mm Wireless Transmission Distance: 100-200m In Open Space Wireless Frequency: 868mhz/433mhz (two-way Fsk) Wifi Communication Protocol: Tuya Protocol Wifi Frequency: 2.4g Package Included: 1*temperature Control Regulator, 1*433 Wireless Panel, 1* Manual, 1*installation Screw Pack Designed For Modern Living