Specifications:This product can plug and play, no need for installation. The big LCD with green backlight makes it easy to operate in dark environment.With standard heating mode and cooling mode, this programmable thermostat can set different target temperature in different time range, it can switch between Celsius and Fahrenheit.Features clock display, it is switchable in 12/24 hours mode.The reset button can back to factory mode.It has super long standby time, work with 2 pieces of AA batteries.With multi-channel design, it is easy to learn code and built-up control system without interruption.Features children lock function, it will automatically lock this device if no operation for 10 minutes. Item Name: ThermostatMaterial: ABS, NylonPlug Type: US/UK/EU PlugBattery: 2 x AA Battery (Not Included)Features: Intelligent, Thermostat, DurableSocket Size: 13cm x 7cm x 6cm/5.12 x 2.76 x 2.36 (Approx.)Thermostat Size:12cm x 8cm x 4.5cm/4.72 x 3.15 x 1.77 (Approx.) Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes:1 x Thermostat1 x Socket