Passive infrared (PIR) outdoor motion sensors provide outstanding reliable value in security lighting, as well as convenience, safety, and energy savings for a wide range of commercial and industrial applications. These outdoor motion sensors are designed to be mounted at a height of 8-10 feet and have similar maximum ranges, although the detection pattern and field-of-view varies with regard to the model number. Each device has a sensor and switch incorporated into one unit, and is installed as part of a lighting circuit. It will turn light fixture(s) ON when it senses movement in its field-of-view. It will also turn the same fixture(s) off from a user-determined time interval after motion is no longer detected.