This is a durable, safe and reliable electric heating thermostat that is easy to install and program. It can provide uniform and comfortable temperature control. Free mo bile app allows you to control your thermostat from anywhere & anytime conveniently, which fits in your lifestyle and gives you an energy-saving and comfortable living environment. It’s suitable for use in office buildings, hospital, school and entertainment places for temperature control. Specifications: Color: White / Black(Optional) Shell Material: PC + ABS(Fireproof) Display: LCD with Backlight Sensor: NTC 10K  Power Supply: 95 ~ 240 VAC, 50 ~ 60Hz t Load: 16A Power Consumption: <1.5W Accuracy: ±0.5°C Timing Error: <1% Set Temp. Range: 5 ~ 35°C Display Temp. Range: 5 ~ 99°C Support Syst em: For iOS 8.0 and higher or for Android 4.1 and higher Ambient Temperature: 0 ~ 45°C Ambient Humidity: 5 ~ 95% RH (Non Condensing) Storage Temperature: -5 ~ 45°C Installation Hole Distance: 60mm Installation Box: 86 * 86mm Square or European 60mm Round Box(Not Included) Wire Terminals: Wire 2 * 1.5mm2 or 1 * 2.5mm2  Protection: IP20  Item Size: 86 * 86 * 13.2mm  Item Weight: 161g  Package Size: 10.5 * 9 * 6cm  Package Weight: 267g  Package List: 1 * Thermostat 1 * 2.5m External Sensor 2 * Mounting Screws 1 * User Manual(English)