3M™ E-A-Rfit™ Dual-Ear Validation System, 393-1100

3M™ E-A-Rfit™ Dual-Ear Validation System is an objective fit-testing system used to validate the fit of 3M™ earplugs and earmuffs. Provides a Personal Attenuation Rating (PAR) for each worker. Dual-element, dual-microphone assembly is the key to the system, measuring sound levels inside and outside the hearing protector. 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. Requires probed test plugs, pods, or cushions. Includes software, speaker and impact resistant carrying case.