The wall mounted thermometer consists of a thermopile infrared sensor, a temperature measurement chip, a pcba board, a liquid crystal display screen and an external shell. After the finished product is turned on, it can automatically measure and record the temperature for 32 times with fast response. It also has a high temperature alarm function and a voice prompt function. It supports multi language (adjustment and customization) and matches most infrared distance sensors on the market. The temperature measurement distance is far.