Linear TMD-90 Supervised Passive Infrared Motion Detector Magnetic Door Lock The Black Box RM686 Network

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Linear TMD-90 Supervised Passive Infrared Motion Detector Magnetic Door Lock The Black Box RM686 NetworkDual element pyroelectric sensor. The TMD 90 Supervised Passive Infrared Motion Detector is a passive infrared (PIR) motion detector with a built in supervised, digitally coded radio transmitter designed for security applications. The PIR detects motion in its detection pattern by measuring the infrared emission levels of objects that it sees. If the infrared levels change quickly, as when a person moves across the detection pattern, the PIR will