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: Thermostat Material: PC + ABS Weight: Approx. 347g / 12.2oz Color: Brushed Silver Product Size: Approx. 13x9x4cm / 5.1x3.5x1.6in Voltage: AC 95-240V 50-60Hz Current Load: 5A Power Consumption:1 x Thermostat 2 x Screw 1 x Manual The connection operation is complicated, it is recommended to install with the help of professionals.