125 Khz & 13.56 Mhz Printed RFID 1k Card / Printing RFID Card, Size: Small

RFID systems enable a card and a card reader to communicate without the need for one to physically touch or contact the other–hence the term contactless. The card need only be placed in close proximity to the reader for communication to occur–hence the term proximity.How does a proximity card work?The proximity card reader is wired to an access control system panel. The wires carry power to the reader, and data from the reader to the panel. The Reader emits an electromagnetic field called the "excite field". ... When a proximity card is brought within the field, the card absorbs some of the energy from the field.How does a proximity card work?The proximity card reader is wired to an access control system panel. The wires carry power to the reader, and data from the reader to the panel. The Reader emits an electromagnetic field called the "excite field". ... When a proximity card is brought within the field, the card absorbs some of the energy from the field.