Amazon.com: RFID Module RC522 Kits S50 13.56 Mhz 6cm with Tags SPI Write & Read for arduino uno 2560 : Electronics
NR01 net radiometer | Hukseflux,Amazon.com: RFID Reader Mini ID IC Card Reader Scanner RFID Reader 125KHz/13.56Mhz Dual Frequency Reads TK4001 EM4100 ID IC NFC Card Access Control ,Amazon.com: RFID Module RC522 Kits S50 13.56 Mhz 6cm with Tags SPI Write & Read for arduino uno 2560 : Electronics,Amazon.com: RFID Reader Mini ID IC Card Reader Scanner RFID Reader 125KHz/13.56Mhz Dual Frequency Reads TK4001 EM4100 ID IC NFC Card Access Control