13.56MHz MFRC-522 RC522 Radiofrequency RFID NFC Card Inductive Sensors Module US

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13.56MHz MFRC-522 RC522 Radiofrequency RFID NFC Card Inductive Sensors Module US

5pcs 13.56MHZ Smart Card EM4100/4102 RFID Proximity Card 0.8mm DHL or EMS

LJ12A3-4-Z/BX Inductive Proximity Sensor Switch NPN DC 6V-36V A2TM