Active RFID and Sensor Networks

Active RFID sales to 2007
We have ended the decade of active RFID consisting of large tags in systems always generating their own radio waves usually in the 305-433 MHz range. To the beginning of 2007, 614 million active RFID tags have been sold with the vast majority used for car clickers (593 million). Like these, a large percentage of active RFID tags being sold in the future will replace nothing: they will perform new functions. The second biggest use for active RFID to date has been by the military, using 6.3 million active RFID tags so far.