Feature:1. APP Control: the WiFi version smart thermostat can be remotely controlled by your mobile devices (cell phone, tablet and computer) before you come back home. (APP: TuyaSmart / Smart Life, and make sure your phone is connected to 2.4GHz WiFi)2. LCD Touch Display: elegant appearance, one face designed with touch control panel, anti-scratch. 3.1-inch large LCD display screen with backlight, easy to operate and read.3. Children Lock: keypad locking function is designed to prevent children from operating by mistake, press and hold the +- key for more than 5 seconds to lock/unlock the thermostat.4. 5+1+1 Six Periods Per Day Programming: the thermostat supports different temperature setting accordingly with 6 time-modes daily, 5+1+1((1-5, 6, 7)) weekly programmable mode.5. Accurate Temperature: external(electric heating only) and internal sensors allow control of both room and floor temperatures, NTC temperature sensor, with 1C accuracy.6. Application: suitable for controlling electric underfloor or water heating or water/gas boiler system. It helps to drive down home energy costs, perfect for home, school, office, hotel, hospital, shopping mall, etc.Specification:Specifications:Shell Material: PC+ABS (Flame retardant)Temperature Sensor: NTC 3977 10KTemperature Accuracy: 1Power Consumption: <1.5WTiming Error: <1%Voltage: 95~240VAC, 50~60HzKey: Touch keyAmbient Temperature: 0~45, 5~95%RH(non condensing)Storage Temperature: -5~55Installation Hole Distance: 60mmSuitable for Installation: 86 box or European 60mm round boxItem Size: 86 * 86 * 40mm / 3.39 * 3.39 * 1.57in Item Weight: 160g / 5.66ozPackage Weight: 262g / 9.26ozPackage Size: 9.6 * 9.6 * 6cm / 3.78 * 3.78 * 2.36in.Package List:1 * Thermostat2 * Screw1 * Manual (English)