Features 1、Smart Gas Boiler Thermostat: The intelligent digital thermostat is suitable for room-by-room temperature control and household-by-household temperature control floor heating system.  It improves comfort while achieving energy saving. Widely used in home, commercial, industrial, ect. 2、980ft Distance RF433 Receiver: AC thermostat comes with a RF433 receiver which supports max. 300m/980ft far distance wireless transmission.  3、APP and Voice Control: WiFi thermostat can be controlled via smart phone APP and voice assistant. Supporting manual and automatic modes, one-button energy saving, Celsius and Fahrenheit switch, weather report and weekly programmable mode. 4、Safe and Durable Material: Digital thermostat made from fire retardant PC+ABS shell and highly-quality LCD VA display. IP20 waterproof, resistant to scratches and oil stains. USB charging and battery operated 2 power supply methods, low power consumption.(Batteries are not include) 5、Easy to Install and Use: Thermostat for house with hidden stand, wall mounted and standable on desk. Compact and lightweight, not take much space, easy to move, store and carry. Specifications Specifications: Color: White Suitable for: Gas boiler heating Emitter(Thermostat): Size: 118*24*86mm/4.6*0.9*3.4in Power supply: USB cable or 3 alkaline batteries(batteries are not include) Setting range:5℃-60℃/41℉-140℉ Working environment: 5℃-50℃/41℉-122℉ Temperature control accuracy: 0.1℃/23.18℉ Liquid crystal display: LCD VA color screen Shell material: Flame retardant PC/ABS Waterproof: IP20 Self-consumption power: 1w Transmission distance: ≤300m/984ft Wireless frequency: 433MHZ Receiver: Size: 86*86*26mm/3.4*3.4*1in Voltage: AC:90V-240V Frequency: 50-60Hz Working environment: 5C-50℃/41℉-122℉ Shell material: Flame retardant PC/ABS Waterproof: IP20 Self-consumption power: 1W Load current: 3A Transmission distance: ≤300m/984ft Wireless frequency: 433MHZ Package List Package List: 1 * Thermostat 1 * Receiver 1 * Power cable 1 * Set of screw 1 * Manual