Radio-frequency identification (RFID) has an enormous variety of uses, ranging from public transportation to animal identification to product tracking. In industrial environments, RFID tags are used to track parts or assets, useful for automation and/or logistics purposes.

Three frequency groups make up virtually all RFID tags: low frequency (LF), high frequency (HF), and ultrahigh frequency (UHF). Each frequency group has their own typical uses because of their inherent advantages.

RFID can read at range as far as 12 meters with a passive RFID tag, whereasactive tagscan achieve ranges of 100 meters or more. The operating frequency of UHF RFID tags range from 300 MHz to 3 GHz. So in summary: the lower the frequency, the lower the transmission distance.

Active RFID range are tags that consistently emit radio signals in order to be picked up by a reader. These tags are accompanied by a battery or another continuous power source, and an antenna to transmit and receive radio signals. Depending on the size, active rfid range tags can hold various amounts of data, typically not more than a few thousand bytes. Data can be both written on or received from an active RFID range tag for purposes such as logging or documentation.

RFID technology is a growing market, and UHF tags are becoming increasingly popular due to their lower cost and equivalent effectiveness to LF and HF tags. If you are searching for a new tagging or tracking system that will improve your business model, RFID may be a valuable option to consider.