A radio frequency identification reader is known as a device which is used to collect information from the RFID tag. This is used for tracking the individual objects. Radio waves are used for moving the data between the reader and the tag. This is a technology which is like bar codes.
There is no need to scan the RFID tags directly and it does not need direct contact with the reader. You may search for the RFID chip timing Garden Grove California online for obtaining more information on this regard.