1、COMPACT SIZE AND EASY TO INSTALL: The smart thermostat has a compact size and is suitable for all types of concealed boxes. It can be easily installed in different sizes of concealed boxes, such as 86MM square concealed box and 60MM European concealed box. 2、KNOB CONTROL, CONVENIENT AND EASY TO USE: The smart thermostat is controlled by a knob, which displays the complete functions and can be controlled by rotating the knob, which is easy and convenient to operate. Users can realize the adjustment of temperature directly through the knob. 3、TEMPERATURE CALIBRATION: The smart thermostat supports the temperature calibration function to prevent the temperature difference between the floor and the air. Users can set the calibration value through APP to ensure that the final temperature reaches the ideal value to enhance comfort. 4、HIGH TEMPERATURE PROTECTION: In order to protect users from the dangers caused by high temperature, the smart thermostat has a high temperature protection function. When the temperature exceeds the safety range, the thermostat will automatically stop heating to ensure safe use. 5、INTELLIGENT CONTROL: The smart thermostat is a highly intelligent thermostat that integrates a variety of functions. It is equipped with WIFI function, which can realize voice control by pairing with smart assistants such as for Google Home, for Tmall Genie, for Tencent Xiaowei and so on. Item Type: Smart Thermostat Material: PC, ABS Weight: Approx. 221g / 7.8oz Voltage: AC 95-240V Current Load: 5A Sensor: NTC3950, 10k Accuracy: ±1 Degree Celsius Setting Temperature Range: 5-35 Degree Celsius Room Temperature Range: 5-99 Degree Celsius Display Temperature Range: 5-99 Degree Celsius Ambient Temperature: 0-45 Degree Celsius Ambient Humidity: 5- 95% RH (Non Condensing) Storage Temperature: 0-45 Degree Celsius Mounting Box: 86x86mm / 3.4x3.4in Square Or Euro 60mm / 2.4in Round Box Wire Terminal: Wire 2x1.5 mm² Or 1x2.5 mm² Protection Grade: IP20 Color: Black 1 x Smart Thermostat 2 x Screw 1 x Instruction Manual