Originally invented in 2004, FLARM is still today the only prevalent alternative to the expensive TCAS system used in airliners. The system and technology itself is described under the Technology section.
The original or Classic FLARM that was developed over a decade ago has seen some major change in the last years. The Classic FLARM has today been replaced by the PowerFLARM line of products. PowerFLARM is faster, has an increased range and many new safety features.
In addition to PowerFLARM devices manufactured by FLARM Technology, there are many devices available from licensed manufacturers. A wealth of FLARM compatible displays and other devices are also available on the market. Altogether, there are over 50 different FLARM compatible products available.