Frauscher Sensor Technology
Frauscher Sensor Technology is an Austrian manufacturer of wheel sensors and axle counting systems used for train detection in railway signalling.
Founded in 1987 in St. Marienkirchen, Frauscher supplies the components that tell an interlocking whether a track section is occupied or clear — a safety-critical function underlying nearly every modern signalling installation. Frauscher was acquired by Wabtec in December 2025, following an agreement announced in July 2025.
Axle counters increasingly replace track circuits as the standard method of track vacancy detection, because they are less sensitive to weather, track condition and electrification interference. Frauscher’s axle counters comply with CENELEC SIL 4, the highest safety integrity level, and are integrated by signalling suppliers including Alstom, Hitachi and Siemens rather than sold as complete signalling systems — Frauscher occupies the component-supplier layer of the market.
The company employs more than 700 people across 15 countries. Its systems connect to interlockings through conventional relay interfaces as well as open network interfaces based on the EULYNX standard, which positions the product line for the digital interlocking architecture now being rolled out across European networks.