What is RFID?

RFID is an electronic tagging technology  that allows an object, place, or person to be  identified at a distance without a direct line-of-sight, using radio waves.

You probably already use RFID technology everyday. For example, keyless entry systems on cars use a small RFID reader (a key fob) and an RFID tag (inside your car). When these two match, entry to your vehicle is granted. RFID technology is also used to prevent theft from department stores, where tags are attached to clothing, CDs and other items, and tag readers are placed by exits. The reader at the exit activates the tag at a distance and the tag returns its ID (and other information if required) to the reader, via radio waves. Typical applications include labeling products for rapid checkout at a point-of-sale terminal, inventory tracking, animal tagging, timing marathon runners, secure automobile keys, and access control for secure facilities.

     

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