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Wanco WSDT3-S Compact Speed Trailer

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The Wanco WSDT3-S Compact Radar-Speed Trailer with full-matrix display features the largest portable speed sign. The giant display shows vehicle speed in bold 26-inch characters, warning motorists to slow down by flashing their excessive speed. The trailer’s see-through design puts pedestrians and road workers in view, improving their safety — particularly in high-risk areas. The automated solar charging system provides long run times.

Wanco Speed Trailers Compact WSDT3 (click for pdf)


  • Extra-large full-matrix display
  • Selectable speed-limit setting
  • Streamlined see-through design
  • Regulatory speed limit sign
  • Clearly displays speed in up to three digits
  • Compact and easily portable, 5-minute setup


  • Portable system is easy to transport and deploy
  • Regulatory speed-limit sign has changeable speed numbers
  • Selectable speed limit setting
  • Configurable, flashing excessive-speed message
  • Configurable speed units, mph or km/h
  • Heavy-duty hand-winch with safety brake raises regulatory sign for deployment
  • Locking device holds signs frame in place while operating and during transport


  • Extra-large electronic speed display with full matrix of LEDs
  • Lenses and shades over LEDs produce superior visibility
  • Display visible over standard Jersey barrier traffic divider
  • Display flashes when a vehicle exceeds speed limit
  • Clearly displays speed in up to three digits
  • Radar unit is CE compliant, FCC approved
  • Weather-resistant control box cover has lockable latches
  • See-through design puts pedestrians and road workers in view

Power system

  • Battery powered and solar charging
  • Energy-efficient operation results in long run times
  • Solar panel charges batteries automatically without intervention
  • Charging system shuts down when batteries are fully charged, preventing damage
  • Unique system allows battery charging with solar panel or commercial power
  • Cooling fan protects battery charger from overheating
  • Battery box can be locked to prevent unauthorized access


  • Individual display modules can be replaced easily
  • Standard trailer tires
  • Heavy-duty bolt-on fenders can be replaced if damaged
  • Durable powder-coat finish resists the elements



  • Touchscreen controller


  • Red-and-blue flashers
  • White flashers


  • Choice of battery types and configurations
  • Additional solar
  • 45-amp battery charger


  • Combo-hitch for 2-inch ball and 2 1/2-inch pintle hook
  • Standard lunette ring for 2 1/2-inch pintle hook
  • Heavy-duty lunette ring for 3-inch pintle hook


  • Large speed limit sign
  • High-security battery box
  • Wheel lock

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