RSF Electronics was founded 1973 in St. Georgen near Salzburg, Austria.

From the beginning, the objective was to develop and produce Linear and Rotary Encoders and Digital Readouts. Our products were well accepted in the market, and after some years, the company employed more than 100 people. Due to growth, it was then necessary for RSF Electronics to move into larger facilities.

The company moved in 1978 to our current location. Today, the largest percentage of our shipments are Incremental Linear Encoders.

To guarantee the best possible support, we have regional offices in the USA, Germany, Switzerland and Slowenia. We also have distributors in nearly every industrialized country in the world. Our German facility not only provides customer support, but also manufactures Incremental Rotary Encoders and special customer specified products for the robotic industry.

One of the most important components of an optoelectronical measuring system is the high precision grating scale, which is based on a thin film technology, where the graduation patterns are copied/plated on glass or steel. To produce grating scales, SENTOP Ges.m.b.H. was established in Tarsdorf in 1986. It is a wholly owned subsidiary of RSF Electronics. In addition to the linear and circular graduation patterns required for RSF production, SENTOP produces precision gratings components for OEM applications to customer specifications. SENTOP has its own sales and marketing department, and an office in Wil, Switzerland.

To guarantee the high quality standard at RSF Electronics and SENTOP, an all-out quality control system was installed, which is certified according to DIN EN ISO 9001 since February 1995.