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Vehicle Over-Height Warning System

The SLD Vehicle Over Height Warning System provides advance visual warnings to drivers approaching height-restricted structures, helping prevent collisions caused by distracted or fatigued operators. Unlike traditional height bars that only indicate impact after contact, this system uses a high-powered infrared beam projected across the roadway ahead of the restriction. Height-adjustable, post-mounted infrared beams are wirelessly connected to each other and to a visual warning display positioned in the driver’s line of sight. When the beam is broken, the warning system activates and animates, giving the driver sufficient time to stop and avoid entering the restricted area.
Australian Made
Built for Australian Conditions
24/7 Constant Operation
2-year
Full warranty
  • Click here to see a video demonstration
  • Highly effective Vehicle Over Height Warning System
  • LED ‘s becomes animated on activation
  • Dramatically increase the awareness of hazards
  • All modules are solar and wireless
  • 240v-12v converter module available
  • IK10 Impact resistant sign face
  • Lockable component enclosure
  • SKU SOLHC001
  • Sign Face Custom
  • Display Colour Custom
  • Solar Panel Wattage 80W
  • LED Output Variable
  • Lumen Output Automatic variable
  • Battery Type Lithium – Ion
  • Battery Specifications 48Ah 12v (576Wh)
  • Autonomy > 5 Nights, setting dependent
  • Light Source SMD LED
  • Recharge 6 hours
  • Mounting Height Variable
  • Mounting Galvanised steel column
  • Finish Powdercoated aluminum
  • Warranty Period 2 years

OPERATIONAL MODES

24 hour continuous or dusk to dawn operation. LED Flashing Interface is triggered when through beams are broken. Custom programming available. Alternate signs available.

Australian Made and Owned

SolTech products are designed, engineered, and manufactured in Australia for safety, performance, and durability. This ensures premium quality control and reliable, contactable Australian based support. Every system is purpose-built for tough Australian environments, making SolTech a trusted choice for councils, contractors, and engineers nationwide.

Vehicle Over-Height Warning System FAQs

A Solar Vehicle Over Height Warning System is a safety solution designed to alert drivers of oversized vehicles before they reach a low-clearance structure. It uses infrared beams and a visual LED warning display to provide a clear, animated alert, helping prevent collisions and property dam

The system projects a high-powered infrared beam across the roadway ahead of the height restriction. When an oversized vehicle breaks the beam, the visual warning display becomes animated, alerting the driver in time to stop and avoid impact. All components are solar-powered and wirelessly connected for easy installation.

It is ideal for areas with low-clearance hazards such as tunnels, bridges, loading docks, and warehouse entrances. The system can be mounted on galvanized steel columns and adjusted to the required height for maximum effectiveness.

By providing an immediate and highly visible warning to drivers of oversized vehicles, the system prevents collisions with low-clearance structures. This reduces the risk of property damage, vehicle damage, and potential harm to pedestrians and workers.

Case Studies using this Product

Custom Relocatable Solar Over Height Warning Systems

Capability X, A leading technology and consulting firm dedicated to delivering innovative solution commissioned SLD to develop an over vehicle…

Solar Height Clearance Warning System Construction Zone

Gamuda (Australia) Pty Ltd, working across all Sydney Metro construction sites, identified a major safety concern with low-hanging power lines…

What Our Customers Say

We’re proud to deliver solutions that make a real difference. Don’t just take our word for it, hear directly from clients who have experienced the reliability, performance, and impact of our products and services. Their stories speak for themselves.

Why Choose Solar Vehicle Over Height Warning System

Independent Systems

Independent Systems

Independently charged and Wirelessly connected systems
Installation

Installation

Simple plug and play
Solar Charged

Solar Charged

Complete off grid system or 240V
Effective Over Height Warning

Effective Over Height Warning

High power infrared provide overheight trigger

Safety Focused

Engineered to improve traffic and pedestrian safety

Rapid Deployment

Install in hours, no cabling required.

Climate Resilient

Built to perform in Australian outdoor environments.

Australian Warranty & Support

Local expertise, product support, and trusted long-term warranty coverage.

Smarter Off Grid Safety Systems

SolTech is built on a simple belief: safety should never depend on mains power availability. That’s why our team of engineers and specialists develop solar safety systems that perform reliably in the most demanding environments, day after day, year after year.

What Sets SolTech Apart in Solar Traffic & Safety Innovation

SolTech delivers scalable traffic safety systems engineered for Australian conditions — combining solar power, smart technology, and rugged design to ensure compliance, performance, and reliability.

1
100% Road-Ready

Field-tested for durability in Australia’s toughest climates. Built to perform reliably on highways, work zones, and remote roads with minimal maintenance.

2
Proudly Australian Made

Designed and manufactured locally by SolTech, this includes metalwork and powdercoated components.

3
Minimal Maintenance

Solar-powered systems require no grid connection. Quality components ensure continuous performance with minimal downtime or site intervention.

4
Built to Scale

Modular, plug-and-play systems that expand with your project. Ideal for councils, contractors, and large infrastructure rollouts needing scalable, uniform technology.

5
Backed by Local Experts

Get dedicated support from our Australian team — with fast turnaround, expert guidance, and industry leading warranty coverage for long term confidence.

The SolTech Range: Reliable, Scalable, Modular Solar Safety

From pedestrian crossings in remote worksites to radar speed signs for infrastructure projects, SolTech’s range is engineered for safety, flexibility, and easy deployment – no power grid required.