Noise measurement experts since 1969

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Pulsar SafeEar the original Noise-Activated Warning Sign

The original noise-activated warning sign that lights to at a pre-set trigger to warn people when hearing protection must be worn and when it's safe to remove it.

Perfect as a hearing protection sign for construction sites, factories, manufacturing plants and much more. Ideal for social distancing situations too as you don't have to be there for enforce the wearing of hearing protection when noisy. 


  • Noise warning sign lights up when pre-set noise levels are exceeded
  • Quick & simple to install
  • Warning light trigger level can be adjusted from 40dB(A) to 114dB(A)
  • Alerts both staff and visitors to noise issues by acting as a caution sign
  • Adjustable warning light using high-intensity white LED technology for high visual impact 
  • Add warning beacons for extra visibility. Add a data logger to monitor and record noise levels over time.
  • These signs can be daisy-chained together with secondary units to cover larger areas
  • Four standard messages to cover all applications including for creating Quiet Zones.

"We are very happy with our purchase of the SafeEar system and has proven to be an effective way of controlling the hearing protection of our staff without forcing them to permanently wear ear protection."

Chris Frier
Harsco Environmental

"We bought two of these signs to put up in the engineer workshop on site. These signs are an excellent visual warning. The sign is very bright and clear when activated."

Weatherproof SafeEar - rated IP65

SafeEar Max Xl Noise Warning Sign

IP65-rated weatherproof version of our original SafeEar warning sign. Lights up to warn of high noise levels. Control the decibel trigger level yourself Ideal for outdoor use, or areas with high levels of cleaning.

Extra large (650mm square) weatherproof and dustproof noise-activated sign. Ideal for construction sites and large spaces. Monitor, record and warn of high noise levels - so it's perfect for managing noise during these times of social distancing in the workplace.

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"We have a test area where the noise is occasionally above 84dB. The sign was easy to install and easy to set up. The Pulsar SafeEar is benefiting the people who are operating and visiting this area, advising and warning them to the potential exposure to noise." 

ATB Lawrence-Scott

David Percival
G's Fresh Beetroot Ltd

Pulsar SafeEar - the original noise-activated warning sign

Lights up to warn of high noise levels. Control the decibel trigger and brightness yourself. Ideal for all applications. Great for managing noise at times of social distancing; add a data logger to to monitor noise levels over time. 



Phone: +44 1723 518011

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Interactive noise warning signs

Signs that tell you when to wear hearing protection and when it's safe to take it off

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