Kiro&Seeu 2PCS HC-SR501 Pyroelectric Infrared IR PIR Human Motion Sensor Dete...
$20.47
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EC Buying 5Pcs HC-SR501 PIR Motion Sensor Module, Passive Infrared Human Dete...
$15.74
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About this item
It detects motion by sensing changes in infrared radiation emitted by warm objects moving within its detection area. 30 – 60 seconds Interface Pins: VCC, GND, OUT Lens Type: Fresnel lens PCB Size: Approx.
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