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  6. 3M™ E-A-RTONE™ Insert Earphone 3A Replacement Sound Tubes 420-2003, 4 EA/Case

3M™ E-A-RTONE™ Insert Earphone 3A Replacement Sound Tubes 420-2003, 4 EA/Case

3M ID 70071615895
  • 3M PSD products are for occupational use only.
  • *The NRR may overestimate the hearing protection provided during typical use.
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Details
  • 3M PSD products are for occupational use only.
  • *The NRR may overestimate the hearing protection provided during typical use.

This E-A-RTONE™ 3A Insert Earphone accessory is a clear, polyurethane 9.85" replacement sound ("front") tube for all standard E-A-RTONE™ 3A Insert Earphone models.

By directly coupling to the test subject's ear canal, via disposable foam E-A-RLINK™ eartips, the E-A-RTONE™ 3A Insert Earphone for audiometric testing provides both performance and reliability advantages over traditional supra aural earphones. Benefits (in comparison to supra aural/TD H style earphones) include;
Improved ambient noise attenuation
Greater interaural attenuation
Facilitated infection control (via disposable eartips)
Elimination of collapsed canal artifact
Better Test/Retest Reliability
Reduced Occlusion Effect for BC testing

This E A RTONE™ 3A Insert Earphone accessory is a clear, polyurethane 9.85" replacement sound ("front") tube for all standard E A RTONE™ 3A Insert Earphone models. Front tube replacement is recommended on an annual basis or as required.

Business Contact
Region Title Name Contact Number
Hong Kong Fall Protection & 3M Scott Safety Sales Development Manager Escher Leung (852) 2806 6283