What is RFID systems?

RFID (Radio-Frequency Identification) systems use radio waves to automatically identify and track tags attached to objects. An RFID system consists of a tag (containing stored information) and a reader. The reader emits radio waves, and when a tag comes within range, it responds by transmitting its stored data back to the reader. RFID is commonly used for inventory management, access control, supply chain tracking, and contactless payments.