Height Limit Warning System


Many road tunnel, highway bridge has height limitations, but because the height limit sign has bad warning effect and the driver lacks of patience, the accident will still usually happens which causes casualties, traffic congestion


Ellumin height limit warning system is used for detecting the height of the coming cars. The detector is located at the ahead of the height limit road section. When the coming car’s height has exceed the standard height. On the one hand, the system will immediately notify the monitoring centre; on the other hand, it will illuminate the warning sign flashes and high-decibel voice alarms for warning the driver stops or bypass in advance


  • Solar or AC power
  • Ruggedized edge lit sign for rigorous external environments
  • Sensor height can adjustment
  • Can connect to the ELLUMIN Cloud for better solving traffic problems and managing traffic order
  • Low bridges, tunnels

Activation Equipment

Infrared Sensing Bollards

-When the vehicle which has exceeded the standarnd height crosses between the infrared sensing bollards, the pre-warning system starts

  • One-directional discrimination function (only detects the coming car for activating the pre-warning system)
  • Vehicle flow data collection function
  • Solar or AC power supply optional
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Warning Equipment

1.Led Warning Sign

-Once the pre-warning system starts, the led sign immediately flash to warn the drivers, your vehicle has exceeded the standard height, please slow down and choose to change lane in advance

  • LED lamps adopt daytime visible light design for effective warning in daytime and nighttime
  • Support customization(Customizable sign content,led lamp color,flashing frequency etc)
  • Can designed to be MUTCD-Compliant
  • Solar or AC power
  • Easy installation, low maintenance
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2.Voice Alert Module

-Once the pre-warning system starts,the voice alert module immediately alarm for drivers’ safety

  • High decibel


-Remotely Monitor and Manage
The cloud warning platform is a technology-based platform developed by ELLUMIN. It can be connected with all ELLUMIN pre-warning systems to help you better solve traffic problems and manage traffic order

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