Guidelines for Mounting Motion-Detecting Lights

Motion Sensors: How They Operate

A passive infrared sensor, or PIR sensor, is the most popular form of motion sensor used for home security. Infrared thermometers (PIR) emit light to measure body temperature. The sensor’s rays spread out in a fan pattern, with the greatest concentration close to the sensor and decreasing sensitivity farther away. It is crucial to install these sensors in an area where the rays will not be blocked by walls or furniture.

Microwave, ultrasonic, vibration, and area reflective sensors are less prevalent. PIR and microwave technologies are used in dual-technology sensors to reduce false alarms.

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If you strategically put your motion detectors, you can protect a bigger area with a smaller number of sensors, resulting in significant cost savings.

Places with a lot of foot traffic

You probably have high-traffic zones in your house, where the floor wears down quickly from everyone walking past it. An intruder will also have to pass through such areas, making them prime sites for motion detectors.


Picture yourself attempting to take a snapshot of a vast room. If you had to take it, where would you put yourself? This is a corner, for sure. Your sensor will have an excellent view of the room from the same spot that provides you with the best overview of the space. One can

Within a range of 6-8 feet in the air

Even while you want your motion sensor ceiling light to have a bird’s-eye view of the area, positioning it too high will cause blind patches at ground level. Most motion detectors work best when mounted between six and eight feet high on a wall. When installing a motion detector in the ceiling, make sure it can see in all directions.

In the Area above the Entrance

Do you know how some jokers like to surprise their victims by dumping a bucket of water on them from above a doorway? The same method may be used to conceal motion detectors within the house, just over an inside doorway. Before it sounds an alert, they won’t even know it’s there.


Intruders who are hoping to avoid detection will likely attempt to get access to your home via the basement. Because of the lack of heat and the open layout of most basements, accelerometers are particularly effective down there.

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