RFID Definition

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RFID is Radio Frequency Identification Tag. An RFID is attached to and identifies a thing such as an item in inventory, a case of items, a pallet of cases, a car passing through a reader on a toll way, or a person passing through a doorway.  It is like a UPC (universal product code) on items in a store, but can be scanned from a longer distance.  A transceiver sends an activating signal and receives identification information.  An active RFID tag has an internal battery and has a longer range than a passive tag which is powered by the radio signal it receives.

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