Dynasys engineers can assist you in developing your applications using Low Frequency RFID devices. This technology is the optimum solution for many types of industrial tracking. Give us a call to see if Low Frequency RFID is best suited for your application.

Low Frequency (LF) RFID is typically defined by radio frequency transponder devices operating in the frequency range of 100 kHz to 140 kHz. Typical frequencies are 125 kHz and 134 kHz. Our TI-RFID LF products operate at 134 kHz. Other brands, such as Impro operate at 125 kHz.

LF is less susceptible to the effects of nearby metals and liquids as compared to devices operating at higher frequencies (i.e. HF-13.56 mHz, UHF-900 mHz). It is for this reason that the U.S. Fisheries Department uses LF RFID to track fish in streams and major car retailers use LF to inventory automobiles. LF has been available for the past 20 years and continues to be the favorite RFID solution for many applications. Contrary to popular belief, LF has not been replaced by higher frequencies and may never become obsolete due to its robust properties.

Advantages of LF are that it is widely used and has been used for many years, it typically has a longer read range than HF, and transponders can be more compact in certain cases (i.e. glass transponders).

The disadvantages of LF are the fact that only usually one transponder can be read at a time (only one transponder can be in the reading field at a time), the transponders are generally more expensive and typically bulkier than HF tags, and the memory capacity of LF transponders is generally lower than HF tags.

Selecting the correct frequency for your project can be a daunting task. If you are just learning, please view our Education Section for more information. If you need some assistance selecting the correct components, call your Dynasys Sales Engineer. Your Engineer is a trained expert in RFID component selection and will help you choose the proper LF devices for your application.

Recommended Education:

LF Antenna Considerations
Making the Right RFID Choices
Vehicle Asset Tracking using LF