Smart thermostat provides uniform and comfortable temperature control throughtout every room in your property. With technology, craftsmanship and quality materials to offer you a safe, reliable thermostat combined with sleek, contemporary design. Features: 51mm round display area helps to protect your eyes, touch screen to make simple operation. Amazing silver frame opens your modern life, the visible thickness above the wall is only 11mm. Integrated with Amazon Echo, Google Home and Tmall Genie. Create thermostat group to centralized control. 5+1+1 six periods programmable maximize comfort and economy, manual or programmable mode switchable. 0.5 accuracy keeps temperature within the level you set. Data memory when power is off, no need to worry about power failure. 86mm hidden box and European 60mm round box is suitable. Press and hold the buttons for 5s to lock/ unlock the thermostat, you can select full lock or half lock. Specifications: Material: PC + ABS Color: White/ Black/ Silver (Optional) Type: Wifi/ Non-wifi (Optional) Voltage: AC 95-240V 50-60Hz Current Road: 3A Power Consumption:Sensor: NTC3950, 10K Accuracy: 0.5 Set Temp. Range: 5-35 Display Temp. Range: 5-99 Ambient Temp.: 0-45 Ambient Humidity: 5-95%RH (Non Condensing) Storage Temp.: -5~45 Timing Error:Protection Class: IP20 APP: My Smart Thermostat Installation Box: 86 * 86mm Square or European 60mm Round Box Wire Terminals: Wire 2 * 1.5mm2 or 1 * 2.5mm2 Available Installation 1: Wall Mount Available Installation 2: Hole Distance of 625mm (Europe, China and Japan) Available Installation 3: Hole Distance of 863mm (USA and Italy, etc.) Item Size: 10.8 * 10.8 * 2.5cm / 4.25 * 4.25 * 0.98in Item Weight: 152g / 5.35oz Package Size: 14.7 * 14.5 * 4.1cm / 5.79 * 5.71 * 1.61in Package Weight: 252g / 8.87oz Package List: 1 * Thermostat 1 * Set of Installation Accessory 1 * Manual (English)