Dual-Ear Validation System, 3M E-A-Rfit 393-1100 For Hearing Protection

3M E-A-Rfit Dual-Ear Validation System helps determine whether workers are receiving adequate protection from their hearing protector by measuring across 7 standard frequencies in under five seconds, providing a detailed report on the noise attenuation performance of earplugs or earmuffs and a pass or fail rating for each individual person based on the employee's personal attenuation rating.

Feature : 

Dual-element, dual-microphone assembly is the key to the system, measuring sound levels inside and outside the hearing protector

Science-based, quantitative testing gives accurate reports of hearing protection

Fast, clear, accurate results are obtained in just seconds and can be printed or saved electronically for future reference

System determines personal attenuation rating (PAR) of individual workers and helps remove measurement, fitting, and spectral uncertainty

Dual-ear design saves time by measuring both ears simultaneously in under five seconds

System tests across 7 standard frequencies (125, 250, 500, 1000, 2000, 4000, 8000 Hz)

Works with a large variety of 3M Hearing Protection Products; earplugs, banded hearing protectors, and earmuffs

Simple, easy-to-use intuitive software

Worker and company reports created

Includes Software, Speaker And Impact Resistant Carrying Case.

Free online training and user support

Requires probed test plugs, pods, or cushions