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120PCS stainless steel 304 open-ended retaining ring E-type snap ring, open-ended snap ring washer E-buckle retaining ring M1.5-M10

Water Sensor for Water Drop Depth Detection

Miniature human body sensing module PIR module infrared module pyroelectric human body infrared sensor module

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Sound sensor module/sound detection module whistle module sound control switch output high and low levels DIY

Tracking Sensor Tracking Module TCRT5000 Infrared Reflective Photoelectric Switch

TCRT5000 Tracking Module/Sensor/Probe Intelligent Car Infrared Tracking

KY-033 Tracking Sensor TCRT5000 Reflective Optical Switch Tracking Module Infrared

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TEMT6000 Environmental Light Sensor Analog Light Intensity Module Visible Light Sensor

5V12V soil moisture electromagnetic relay module soil moisture sensor