Model Number:TGR86-WIFI Origin:Mainland China Certification:CE Type:Temperature Controller App:Tuya Smart / Smart Life Voice Assistant:Alice, Alexa, Google Home, IFTT Connection:Wifi, Bluetooth Current:3A,16A Power Supply:220V Temperature hysteresis:0.5 ℃ Setting range:5~95℃ Sensor:NTC Used for:Indoor Heating Compatiable with:Electric Floor,Water Floor, Gas Boiler TGR86-WIFI series it is compatible with gas boiler heating system, warm floor heating system, water floor heating system. And with Wi-Fi function. 86mm hidden box and european 60mm round box is suitable. App Remote Control: Works with Tuya Smart and Smart Life App. Just turn on Bluetooth to quickly connect. No matter where you are, you can control the temperature at any time. Voice Assistant: TGR86-WIFI can compatible with Yandex Alice, Amazon Alexa, Google Home and IFTTT assistant. Auto Schedule: The device has a programmable 5 +2 six-period control with which you can adjust the heating of your house to your lifestyle; so that it is comfortably warm when you are at home and you save energy when you are out. High accuracy: The minimum temperature hysteresis can be set to 0.5°C to keep the room at a comfortable temperature at all times. Backlight Adjustable: Even in the bedroom, it will not affect your sleep at night. Power Off Memory: Don't worry even if the power goes out suddenly, settings and power status can also be saved. Note: Choose the device you want according to the wiring diagram. TGR86-WIFI-EP is suitable for warm floor heating, connect to heating films, heating mats, etc. TGR86-WIFI-WP is suitable for pumps or actuators, connect NC/NO actuators or valves. TGR86-WIFI-WPB is suitable for gas boiler heating, connect to gas boiler (Dry Contact). Included in the package: 1pcs thermostat; 1pcs English manual; 2pcs screws. (If the English manual is difficult to read, please contact the seller to send the setting video.)