1pcs 125K EM4100 RFID Card Reader Module RDM6300 ID RF UART Output For Arduino
3,29 €
Module size:38.5mm x 19mm x 9mm. PinMode (2, the OUTPUT);. PinMode (3, the OUTPUT);. Supported card: EM/TK 4100, EM/TK4102, EM4200 or compatible. Receiving range：20-50mm (It depends on the antenna, card and the surroundings).
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