How well do passive infrared security systems work?
On One Hand: Infrared systems are cheap and efficientPassive infrared security systems detect the heat given off by living beings and can track when the heat (and thus, the human or animal) moves, which triggers an alarm. They’re smaller and less expensive than many other kinds of security systems and are an attractive choice for many home owners concerned about security.On the Other: They can have errorsIf a passive infrared security system isn’t configured correctly, it could detect a pet or another animal and sound a false alarm. Placing the sensor in an area that has temperature changes throughout the day or where it can detect temperature changes (facing a wall with heated pipes inside, near an air conditioning unit, or facing a window, for example), can lessen the sensitivity of the device.Bottom LineOverall, a passive infrared security system is a good choice for a home owner.
