Sonis� 3 Mounted Ear Defenders - 36dB SNR

Product Features

  • 36dB SNR with attenuation: H = 37, M = 35, L = 26
  • High attenuation large cup for noise levels between 111-116 dB
  • Adjustable steel arms for optimal comfort and fit
  • Tilt and adjust cup position for even pressure distribution
  • Helmet-mounted design compatible with JSP helmets
  • Replaceable sealing rings for improved hygiene
  • Hygiene kits available for extended usability
  • Compatible with JSP Surefit visor system for added protection
  • Conforms to EN 352-3 standards

Product Description

The Sonis 3 Mounted Ear Defenders provide superior noise reduction with an SNR of 36dB, making them suitable for extreme industrial noise environments. Developed by JSPs R&D team in collaboration with a leading UK acoustic engineering research facility, these ear defenders feature high attenuation large cups and adjustable steel arms for optimal fit and comfort. Compatible with JSP helmets and Surefit visor systems, they offer maximum protection for demanding applications.

Product Specifications

Specification Details
SNR 36dB
Attenuation H = 37, M = 35, L = 26
Standards EN 352-3
Product Dimensions Width: 100mm, Length: 165mm, Height: 235mm
Weight 410g

Features & Benefits

  • Designed by JSP R&D team with advanced acoustic engineering
  • High attenuation for extreme noise environments
  • Adjustable steel arms for optimal fit and even pressure distribution
  • Replaceable hygiene kits for extended usability
  • Customizable cups for corporate branding and identity
  • Universal compatibility with JSP helmets and Surefit visor system
  • Reflective and high-visibility options for low-light environments

Applications

The Sonis 3 Mounted Ear Defenders are suitable for:

  • Extreme industrial noise
  • Aircraft operations
  • Quarrying
  • Paper mills
  • Heavy engineering

Sonis Attenuation Data

Frequency (Hz) Mean Attenuation (dB) Standard Deviation (dB) Assumed Protection (dB)
63 13.90 3.70 10.20
125 13.10 1.90 11.20
250 15.40 2.40 13.00
500 25.50 2.10 23.40
1000 31.90 3.80 28.10
2000 32.80 3.70 29.00
4000 35.40 2.70 32.70
8000 36.90 3.10 33.80

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