General description This WiFi Smart Thermostat is designed for gas boilers and water underfloor heating systems, providing efficient control over your home temperature. It operates on a 220V power supply and can function even without WiFi, ensuring reliability in various conditions. Technical specifications Power supply: 220V Maximum output current: 3A WiFi frequency: 2.4 GHz Installation Requires 2 dry contact wires from the boiler for activation. Usage Control via Smart Life/Tuya app for remote access and management. Compatible with Alexa and Google Assistant for voice control. Features manual mode, schedule mode (5/2 days, 6/1 days, 7/0 days), and vacation mode. Includes open window detection to pause heating when a rapid temperature drop is detected. Additional functions: temperature calibration, reset, child lock, and shutdown data saving. Other information Package contents: 1 thermostat, 2 screws, 1 manual.