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4PCS IR Break Beam Sensor 5MM LEDs Counting Module Split Through-Beam Photoel...
- Item No : 388652916156
- Condition : New
- Brand : No brand Info
- Seller : levy_le_kpc5iex
- Current Bid : US $30.64
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* Item Description
- 【Note】That is, the red wire is connected to the positive electrode, the black wire is grounded, and the yellow (white) wire is connected to the signal. Key Features.
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