• An antenna or coil
• A transceiver (with decoder)
• A transponder (RF tag) electronically programmed with unique information

How does RFID work ?

• The most common is to store a serial number that identifies a person or object, and perhaps other information, on a microchip that is attached to an antenna

• The antenna enables the chip to transmit the identification information to a reader.

• The reader converts the radio waves reflected back from the RFID tag into digital information that can then be passed on to computers that can make use of it.