According to Expert Market Research, the top 6 EEG and EMG equipment companies are Allengers Medical Systems Limited, Nihon Kohden Corporation, Cadwell Industries Inc., Electrical Geodesics Inc., Masimo Corporation, and Natus Medical Incorporated, among others. Find your electronystagmography systems easily amongst the 3 products from the leading brands (RMS, Homoth, DIFRA,. Description: Optoelectronic stimulator, "ganzfeld" stimulations for flash VEP, flash ERG and sensory EOG. It provides a comprehensive, systematic VNG/ENG solution. The ICS Chartr 200 is the latest generation of our well-known vestibular test systems. Electrodes (DTL silver/nylon fiber string) are usually placed on the surface of the.