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3M

3M™ E-A-Rfit™ Dual-Ear Validation System

Model: SDT137

Mfr. Model No.: 393-1100

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Colour, sizing or style depicted in some photos may not be exactly as described.
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Description

  • Tests both ears simultaneously in under 5 seconds
  • Earmuff and earplug testing capability
  • Tests at 7 frequencies, from 125Hz to 8000Hz
  • Science-based, objective, quantitative testing