3M E-A-R 1100 Probed Test Plugs For E-A-Rfit Validation System X100 Units Highlights These test earplugs are modified with a probe tube for use during earplug fit testing with the 3M™ E-A-Rfit™ Validation System 3M™ PSD products are for occupational use only These Probed Test Plugs are suitable for testing 3M™ 1100 and 1110 earplugs 3M™ 1100 Earplugs equipped with a probe tube for fit testing using the 3M™ E-A-Rfit™ Validation System. Cannot be used for hearing protection. 3M™ 1100 Probed Test Plugs are a specially probed version of the standard plug. This product works with the E A Rfit™ Validation System and allows you to conduct an earplug fit test for the 1100 and 1110 earplugs.
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