PC-Audiometer ProAudio PC-Audiometer as types OSCILLA USB-100 / USB-300 / USB-300BS for audiometry. Air conduction audiometry, Hughson Westlake test, SISI test, Bone Conduction, Narrow Band Masking Frequencies: 11 frequencies: from 125 to 8000 Hz Sound pressure: from -10 dB to 110 dB in steps of 5 dB This is a product from our digital Diagnostic Center program! to the product ...