What is Radio Frequency Identification (RFID)?

Radio-Frequency Identification (RFID) uses electromagnetic fields to identify and track tags which are attached to objects. A RFID tag is made up of a very small radio transponder as well as a radio transmitter and receiver. RFID tags can be triggered with an electromagnetic pulse from a nearby RFID device reader to transmit digital data often underlying an inventory number back to the reader. This specialized number can be utilized to monitor products that have RFID tags attached to them, so the items can be authenticated, tracked, and located.