Motion and Sound Activated Signs

Spectra’s diverse range of Motion and Sound Activated LED Signs can dramatically improve your processes, increasing safety and lowering your business costs.

Whether you operate in a transport, travel or industrial environment, you need intelligent, responsive signs to keep things running smoothly.

Easy to programme

Our LED display solutions are programmable for optimum usability and can be tailored to your exact needs. For example, speed activated signs can be programmed to display in red or green depending if a vehicle is travelling under or over the speed limit and show statements such as “thank you” or “slow down”.

Programmable LED VMS (Variable Message Signs) information display signs are ideal for the transport industry. Extremely versatile, they are incredibly effective where constantly changing information needs to be immediately conveyed to the public.  Now you can update your LED signs at the flick of a switch.

The possibilities for sector-specific applications are vast, but typical applications can include:

  • Speed activated road traffic signs
  • Motion activated emergency exits
  • Motion activated warning signs (sharp bend etc).
  • Warning of queuing traffic ahead

Many of the UK’s most successful organisations rely on our low powered and hard wearing LED signs and displays which are suitable for harsh outdoor applications and bright sunlight.

If you’re looking to install permanent speed or motion activated signs, or seeking a temporary solution, we’d be happy to discuss your needs.


  • Highest quality, robust and reliable LED signs
  • Crystal clear, immaculate resolution
  • Easy installation and servicing
  • Leading-edge technology
  • Manufactured in the UK
  • Fast delivery and flexible warranties

At Spectra we live and breathe high-quality LED displays.

To know more about our transport and way finding LED displays, contact our friendly customer service team today on +44 1353 661182 or email us at

sound activated LED sign

Customer Stories


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Looking for a custom display or need some help choosing the right solutions?
Contact our friendly team, for expert advice or a free, no-obligation quote.

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01353 661182
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