Sonis Compact Low Profile Mounted Ear Defenders - 31dB SNR

Product Features

  • 31dB SNR with attenuation: H = 35, M = 28, L = 20
  • Compact, low-profile design for medium noise attenuation
  • 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 Compact Low Profile Mounted Ear Defenders deliver reliable noise reduction with an SNR of 31dB, making them ideal for medium industrial noise environments. Developed by JSPs R&D team in collaboration with a leading UK acoustic engineering research facility, these ear defenders feature a compact, low-profile design and adjustable steel arms for a secure, comfortable fit. The universal slots of JSP helmets ensure easy compatibility, while replaceable sealing rings and hygiene kits maintain cleanliness and usability over time.

Product Specifications

Specification Details
SNR 31dB
Attenuation H = 35, M = 28, L = 20
Standards EN 352-3
Product Dimensions Width: 110mm, Length: 160mm, Height: 190mm
Weight 340g

Features & Benefits

  • Designed by JSP R&D team with advanced acoustic engineering
  • Compact and low-profile design for improved mobility
  • Adjustable steel arms for tilt and optimal comfort
  • Replaceable hygiene kits for extended usability
  • Universal compatibility with JSP helmets and Surefit visor system
  • Customizable cups for corporate branding and identity

Applications

The Sonis Compact Low Profile Mounted Ear Defenders are suitable for:

  • Substantial industrial noise
  • Construction and agricultural machinery
  • Road works
  • Forestry
  • 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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