Using Radio-frequency identification (RFID) for attendance tracking offers a few advantages:
Speed:To record attendance, all you need is to bring the RFID tag within a proximity of about an inch from the reader. The process is quick and there is no swiping or scanning involved.
Cost:RFID tags are amazingly cheap (less than 30 cents each for the LF RFID key fob). The reader is also inexpensive (less than $30 each for a LF computer reader).
Convenience:The tag is provided in many forms including a key fob that can be attached to a keychain. There is also an option for RFID wristbands. The reader is compact and light weight.
Security:The RFID tag does not carry any personal information and can be easily replaced if lost.