Wi-Fi Smart Thermostat 16A Digital Temperature Controller APP Remote Control Weekly Circulation Programmable Electric Underfloor Heating with Large LED Touch Screen for Home School Office Hotel Smart thermostat can be used to control the floor heating device. The internal sensor measures the room temperature, and the external sensor measures the floor temperature for high temperature conservation to prevent heating device from burning out due to high temperatures. A perfect thermostat for home! Features: Large touch screen with LED digital display, easy to read. With child lock function to avoid misoperation. Compact size and concise appearance. Smart thermostat can be installed on the wall and used to control the floor heating device. With anti-freezing function. APP remote control, it can be controlled by your phone before you come back home. With an internal sensor and an external sensor, measures ambient temperature and floor temperature, and provides high temperature conservation. Manual mode or automatic mode for various purposes. Low power consumption, more energy-saving and environmental-friendly. Automatically obtain the temperature, intelligent temperature control, with high accuracy to keep temperature within the level you set. With weekly cycle programming, it will control the heating to different set temperatures in different time periods according to the working days (with 6 periods) and holidays (with 2 periods) set by the user. Note:Please ensure a professional person to install your thermostat. Specifications: Color: Black Shell Material: ABS Power Supply: AC 85-250V Current Load: 16A Power: <4W Temperature Display Range: -20~90℃ / -4~194℉ Temperature Setting Range: 5~70℃ / 41~158℉ Networking Mode: 2.4GHz Wi-Fi APP: Smart Life Buttons: Touch Buttons Item Size: 86 * 86 * 45mm / 3.39 * 3.39 *  * 1.77in Item Weight: 134g / 4.73oz Package Size: 10.3 * 10.3 * 6.5cm / 4.06 * 4.06 * 2.56in Package Weight: 255g / 8.99oz Package List: 1 * Thermostat 1 * External Sensor 2 * Screw 1 * User Manual