The motion detector is designed for detecting movement both indoors and outdoors. It can be easily installed in entryways, driveways, or stairwells. Connect a light fixture to the motion detector to optimally illuminate poorly lit areas. The built-in PIR sensor will turn the light on or off. The sensor responds to temperature changes within its detection range. This occurs, for example, when a person or an animal, whose temperature differs from the ambient temperature, enters the detection area.