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Amazon.com: DIGITEN Hall Sensor Proximity Switch NPN 3-Wires Normally Closed NC with Magnet : Industrial & Scientific
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50pcs Hall Effect Sensor Switch 41F 43F 44E 49E 503 17CA 3144 49138 U18 OH137 AH469 AH462 AH463 Element Brushless Electric SMD - AliExpress
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