Passive Infrared Technology

Passive Infrared Technology

What you can’t see with the naked eye

Motion detectors are used for applications such as detecting intruders and setting off an alarm or sensing occupants in a space and turning on lights. If you have ever installed one of these devices, you probably have been asked to explain how they work. When asked this question, many electrical workers simply respond by saying that they detect motion when someone walks in the path of the device. This may serve as a simple explanation; technically, however, it doesn’t accurately describ

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