The DXT-54 Linear Passive Infrared Motion Detector Transmitter is a wireless motion sensor made by Linear. It is designed to detect motion in a specific area and transmit that information to a receiver. The sensor has a 5:4 aspect ratio and comes with an infrared detector. I have three of them and one does have a couple screw holes where it was started to be used but was put back in the box after realizing it wasn't going to work with that system
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