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Amazon.com: DIYmall 5 Pack HC-SR501 Pir Motion IR Sensor Body Module Infrared for Arduino : Electronics
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Amazon.com: Acoeitl HC-SR501 Human Motion Sensor Detector Module Mini Precise PIR Infrared for Arduino 2 Pack : Electronics
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3 Packs 12 V 24 V PIR Sensor Adjustable LED c Black Infrared Motion Detector Body Motion Sensing Light Switch PIR Controller with Embedded PIR Probes for Flexible LED Strip Lights - Amazon.com
