t 0141 255 0840   e info@coeval.uk.com

Coeval’s Overheight Vehicle Detection (OVD) System is designed to tackle the problem of bridge strikes at its root, with the power of intelligent technology. With a height tracking sensor, the system responds to the approach of an overheight vehicle, alerting the driver via an LED warning sign and diverting or stopping them before any damage can be caused.

With this simple measure, Coeval’s OVD System directly addresses the issue of drivers not knowing the height of their vehicle. As well as the clear benefits of their responsive nature, the signs are robust, vandal resistant and visible in all conditions – an especially crucial benefit in the Winter, where driver visibility can be a challenge. The sign technology is fully customised so the message is bespoke to its location, providing specific instructions to the driver. These signs have been shown to reduce bridge strikes wherever they have been implemented.




Wireless and GSM options reduce installation costs, and operators benefit from the remote user interface and text message alerts. Clear Hi-intensity display, perfectly visible in all conditions.

Suitable for all road speeds and locations, with vandal resistant face protected LEDs and performance assured.

Key Features

  • Wireless and GSM options available
  • Robust and purpose built
  • LED warning signs type approved to TR2516/BS EN 12966
  • Signs utilise one-piece face construction
  • Full range of character sizes available


  • TOPAS Specifications: TOPAS 2515A – OVD
  • Working Range: Up to 35 metres (50 metres optional)
  • Height Accuracy: +/- 1mm in still air
  • Message Duration: 1 to 99 seconds
  • Delay before sign activation: 0 to 15 seconds
  • Controller Size: 460mm x 315mm x 160mm
  • Weak Signal Tolerance: Up to 80% signal loss tolerant
  • Sign Case Construction: Maintenance free, powder coated aluminium
  • Wireless Radio Link: Licence-free, ETSI EN 300-200 compliant
  • Options: SMS Alerting Service
  • Housing: IP66 Enclosure
Downloads  Enquire about Overheight Vehicle Detection


Enquire today about Overheight Vehicle Detection.

Solar & Wind Option

Low cost, sustainable power

Mains power is not an option in most hazard locations. We are leaders in providing solar and wind equipment on the road network through out the world and we can design intelligent self-charging & battery solutions, providing maximum green energy to protect your hazards all year round.

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