1Easy to read, 4.8in large color backlit LCD display, easy to operate with touch screen. 2Unique exterior design, silver frame, visible thickness above the wall is only 15mm. 3Easy to use, 1 accuracy keeps the temperature within the set range. You can switch or by yourself. 4Six periods programmable for maximum comfort and economy, manual or programmable mode switching. 5When the data memory is powered off, press and hold for 5s to lock/unlock the thermostat, select full lock or half lock. Item Type: ThermostatMaterial: PC + ABSWeight: Approx. 347g / 12.2ozColor: Brushed SilverProduct Size: Approx. 13x9x4cm / 5.1x3.5x1.6inVoltage: AC 95-240V 50-60HzCurrent Load: 5APower Consumption: <1.5WSensor: NTC3950, 10KAccuracy: 1 or 1Setting Temperature Range: 5-35Display Temperature Range: 5-99Ambient Temperature: 0-45Environmental Humidity: 5-95% RH (non-condensing)Storage Temperature: -5~45Timing Error: <1%Protection Level: IP20 1 x Thermostat2 x Screw1 x Manual The connection operation is complicated, it is recommended to install with the help of professionals.