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An automatic validation instrument for air conduction (AC) screening audiometers and acoustic booths (when used)

  • Totally automatic
  • Compact
  • Easy to use
  • Portable
  • Consistent results
  • Modern electronic design


The ER75 Electro-Acoustic Ear Simulator is designed to provide an objective performance validation of audiometric equipment.

Ease of use

Completely automatic, the ER75 will respond in a consistent manner to produce repeatable thresholds over the frequency range of 250Hz to 8000Hz.

Any variations with previously recorded levels can be identified and acted upon immediately to ensure optimum performance of the audiometric test facility.


Compact and battery powered, the ER75 can be used for both static and mobile requirements.


Download or view the information and specification PDF.

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