SALE HC-SR501 PIR Sensor Modules | 3pcs Infrared Motion Detectors for Automation
$18.04$18.99
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MOPFOL 3Pcs 1-Channel Infrared Motion Detector Module – TCRT5000 Sensor for S...
$9.13
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About this item
Function introduction: The infrared emitting diode of the TCRT5000 sensor continuously emits infrared rays. When the detected object appears within the detection range, the infrared rays are reflected back with sufficient intensity, causing the infrared receiving tube to saturate.
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