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3M™ E-A-Rfit™ Dual-Ear, Microphone Assembly

Helps employers to determine whether workers are receiving adequate hearing protection from their hearing protector

Manufacturer:  3M™ 073781

Catalog No. 19-122-402

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  • For use with E-A-Rfit validation system
  • Tests both ears simultaneously in under five seconds
  • Inserts into back of 3M™ E-A-Rfit™ Dual-Ear Enclosure Speaker Assembly
  • Each dual-element microphone connects to probed test plugs, test pods, or cushions and measures sound pressure levels outside and inside the hearing protector
  • Y-connector between right and left microphone denotes distance user should sit from speaker


Dual-Ear, Microphone Assembly
E-A-Rfit validation system
Health and Safety Testing
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