Hearing Protection Fit Testing - 3M E-A-R Ultrafit Probed Test Plugs, (Case of 50 pairs), 393-2001-50 M1-5-6100 The system measures the effectiveness

The system measures the effectiveness of the hearing protection from inside the employee's ear to provide accurate quantitative results

Noise Reduction Rating (NRR)* 29 dB

3-1/2" angle vise and safety guard

9" roll diameter)

Compatible with most hard

Hearing Protection Fit Testing - 3M E-A-R Ultrafit Probed Test Plugs, (Case of 50 pairs), 393-2001-50 M1-5-6100 The system measures the effectivenessItem #: 393 2001 50 3M Stock #: 7000002387 3M E A R Ultrafit Probed Test Plugs are equipped with a probe tube for fit testing using the 3M E A Rfit Validation System. These earplugs cannot be used for hearing protection. Earfit Global Crossover Guide