Electrophysiology

What was started by Jan Friedrich Toennies almost 60 years ago with the epoch-making invention of the differential amplifier and the development of the first (directly recording) EEG instrument has been logically and consistently sophisticated, resulting in the most advanced generation of TOENNIES instruments. In TOENNIES, innovative researchers of renowned hospitals and institutes, have always found a competent partner to help them make reliable diagnosis. This procedure has remained unchanged ever since we became a division of the Erich JAEGER GmbH in 1987.