Multifunctional temperature controller, this device can be used to control the temperature in many places.Features:Brand new and fine quality.Room temperature automatically calibration function.This new design heating thermostat is easy to install and use and conveniently fits in your life.Easy operation, complete functions.Frame resistance material, safe and reliable.Large negative screen backlight display, cool and modernized design.Can be used to control the temperature in many places.Circuit board with smooth surface has high mechanic strength and heat resistance.Specifications:Color: blackInput Voltage: 12V, 220V (optional)Range of Temperature Display: -50 - 110 Degrees CelsiusRange of Temperature Adjustment: -40 - 105 Degrees CelsiusControl Accuracy: 0.1 Degrees CelsiusOutput Type: relay outputOutput Capacity: up to 10AItem Size: 92 * 80 * 40mm / 3.62 * 3.15 * 1.57inHole Size: 77 * 70mm / 3.03 * 2.76inPackage Size: 95 * 90 * 50mm / 3.74 * 3.54 * 1.97inItem Weight: 140g / 4.94uncePackage Weight: 150g / 5.29ounceSteps:1 Put the four sunk screws on the black plastic plate.2 Set the four plastic gaskets on the screws.3 Put the board on it and tighten the screws.4 Plug the sensor.5 Tapping on the mounting matrix.Package List:1 * Thermostat1 * Mounting Screws1 * Sensor1 * Manual