RFID Tag Selection Help
Technical standards set by EPCglobal enable RFID tags to be grouped according to minimum capabilities. Each class adds to features of the basic class 1 tag, which is “passive”: it depends on a reader to initiate communication and supply power. Passive tags can be read from as far away as 30 feet, active tags from 300 feet or more.
|
Minimum Function |
Some uses |
Class I |
Unique identifier number "Kill function" to disable tag Memory programmable only once Newer "Gen 2" versions may be rewritable and password-protected |
Parts and inventory Enhanced U.S. driver's license Key card |
Class II |
Extended ID number Additional memory, rewritable Password access |
E-passport Credit card National IDs |
Class III |
One or more sensors and a power source |
Container and storage sensors |
Class IV |
Transmitter and power source Can initiate communication with a reader or another tag |
Car key fob Animal tag Toll pass |