3M SKU: 7100077867
Lead Time: ~2 days
3Mâ„¢ E-A-Rfitâ„¢ Dual-Ear Microphone Assembly works with the 3Mâ„¢ E-A-Rfitâ„¢ Dual-Ear Validation System to help employers determine whether workers are receiving adequate hearing protection from their hearing protector. The complete system issues a pass or fail rating for each individual person based on the employee's personal attenuation rating (PAR).
Dual-ear design saves time by testing both ears simultaneously in under five seconds;Dual-element, dual-microphone assembly for use with 3M™ E-A-Rfit™ Dual-Ear Validation System;Each dual-element microphone connects to probed test plugs, test pods, or cushions and measures sound pressure levels outside and inside the hearing protector;Inserts into the back of the 3M™ E-A-Rfit™ Dual-Ear Enclosure Speaker Assembly;Y-connector between right & left microphone denotes distance user should sit from speaker