Passive Infrared Motion Detectors- These detectors are also known as PIR detectors. The technology they utilize is 「passive infrared」. The device is mounted on a wall or in the corner of a room. It se......
Passive Infrared Motion Detectors- These detectors are also known as PIR detectors. The technology they utilize is 「passive infrared」. The device is mounted on a wall or in the corner of a room. It se......