This plug-in thermostat is used to control heating or cooling devices to maintain a stable and comfortable room temperature. It has two working mode ( standard heating mode and standard cooling mode ), and you can also calibrate current room temperature and set temperature hysteresis.Features:1. Simple Design: You only need to preset a target temperature, then it will automatically turn on or turn off your home electric heating / cooling devices to maintain a stable room temperature, and without too much installation, plug and play type. It is very convenient for child and old people to control your home temperature in home.2. Temperature Calibration Temperature Hysteresis: You can easily calibrate this room temperature when you think the temperature is not very accurate, go into setting for calibration and temperature hysteresis.3. LCD Screen: LCD screen with green backlight displays current temperature, target temperature, cool / heat programs, providing clear view even in dark environment.4. Reset Function: Easily delete all setting and back to factory setting by pressing SET button and RESET button.5. Children Lock Function: Hold and press LOCK button for 2 seconds to lock this devices.6. Heating / Cooling Mode Settable: Used to control both heating or cooling devices.Note:1. Due to manual measurement, the size may be slightly different. Thank you for your understanding.2. Due to different light conditions and different monitors, item color displayed in photos may be showing slightly different from real object.Specifications:Plug Type: UK PlugColor: WhiteMaterial: ABS + PC + MetalDisplay: LCD with Green BacklightMax Ratings: 250VAC / 13A / 50Hz / 3250W (UK)Temperature Range: 0~60 / 32~140 Temperature Accuracy: 1 / 1.8 Current Temperature Resolution: 0.1 / Target Temperature Resolution: 1 / Power Supply: 3V ( 2 * 1.5V LR44 ) -- Not IncludedProgram: Heating / CoolingSwitchable Unit: C / FItem Size: 13.6*6.1*6.8cm / 5.35*2.40*2.68inNet Weight: 156g / 5.50ozPacking Size: 17*9*6.5cm / 6.69*3.54*2.56inPacking Weight: 196g / 6.91ozPackage List:1 * Plug-in Thermostat1 * Manual ( English )