RF/Wireless Development Tools - RFID Transponder

At its most basic level, a transponder is a device that responds to specific received signal with a unique identifying signal. RFID transponders, or tags, are placed on portable objects to be tracked or identified, whether it is vehicles, livestock, baggage, or even people. RFID readers entail greater cost and complexity, so they are typically stationary – installed in locations where the RFID data exchange it to take place. RFID is used in many applications including employee access control, asset tracking, electronic toll collection, and supply chain control.