A wall mounted temperature sensor is a device that is typically used to detect and measure the temperature in a certain area. It is usually mounted on a wall and can be used to monitor the temperature of a room, a building, or even an entire facility. The wall mounted temperature sensor typically consists of a sensing element, a power source, and a display unit. The sensing element is used to detect and measure the temperature of the environment. It typically consists of a thermistor, which is a temperature-sensitive resistor, or a thermocouple, which is a temperature-sensitive junction. The power source is used to power the sensing element and the display unit. The display unit is used to show the temperature readings in digital or analog form. The definition of a wall mounted temperature sensor is a device that is used to detect and measure the temperature of an environment and is typically mounted on a wall.