about us


The main founder and owner of Geréb and Co. Ltd ̶ electrical engineer János GERÉB ̶ is working as electronic development engineer throughout his entire professional career. With more than 30 years of experience in the engineering and instrumentation development of acoustic-emission (AE) NDT equipment and AE inspection, he and his colleagues established Geréb and Társa Kft in 2002. During 16 years of intensive work, several AE equipment families have been developed and manufactured. Now, the SENSOPHONE AED4xx acoustic emission equipment family is being manufactured and distributed worldwide in Budapest, Hungary.

The SENSOPHONE AED4xx family is result of hard work of our numerous partner companies and highly qualified professionals. Some of our partner organisations: Sensophone_logo_2018_06
Paton Institute of Electric Welding  MAROVISZ
Hungarian Association for Nondestructive Testing
Hungarian Acoustic and Industrial Diagnostic Testing Laboratorys
Békésy György Acoustic Research Laboratory