RFID is the short form of radio frequency identification technology. It is a discovery of the technology that includes RFID transponders or chips to transfer the information to the readers without any wire. These tags include exclusive information which is accessed by the reader.
The tags are not required to be kept near the scanner since the reader or scanner can access the information from a certain distance. These can be implanted within the pets to track their movement. You may search for the RFID chip timing Simi Valley California on the Internet for obtaining more information in this regard.