Visual indicators of excessive 
Sound and Noise in the workplace


  Datasheet (PDF) 



Sound and Noise level alert
Hearing protection for Health and Safety in the workplace


The SL130 Kit continuously monitors sound / noise levels and provides a clear visual indication of excessive noise in the workplace.

"All premises especially those playing amplified music at noise levels above 80db are encouraged to undertake a risk assessment and identify how staff exposure can be reduced."

The SL130 monitor features a user-settable sound level (30 to 130dB), once this level is exceeded the warning sign is illuminated with super bright LEDs (flash or stable mode)

The illuminated sign has a time delay of  5 sec to15 mins (user-settable), this ensures all works are able to take necessary action to protect hearing. 


Available Kits

Industrial Kit (SL130K-I)

Public Kit (SL130K-P)

Purchase from Burn Technology Limited

Purchase from Burn Technology Limited


Kit Contents
  • Extech SL130 sound level monitor
  • Illuminated LED warning sign
  • AC Adaptor
  • Connecting cables
    (Meter and sign come with 10 metre cables)
  • Zero maintenance light box, using LED technology.
  • Variable time delay of 5 seconds to 10 minutes keeps the sign lit after the last excess noise level has been detected.
  • Flashing or constant warning light (user switchable)
  • Low voltage operation, AC adapter supplied, can also operate from battery power.


Applications and Locations

Our exclusive visual sound level kits are used and trusted in a wide range of workplaces, including:

  • Radio stations
  • Schools
  • Industrial Premises
  • Pubs and Clubs
  • Universities
  • Shops
  • Hospitals
  • and many other locations.