ST-4815-O PRO Series (TC-12)Trailer-Mounted Arrowboard

The ST-4815-O Pro Series is our MTO approved (Ontario) trailer-mounted arrowboard that comes with 15 LED lamps and orange reflective sheeting background with flap system for better visibility. It features our innovative single-mast design, wireless V-Switch controller, Stealth technology, OptiBright technology and is wired to integrate the Smart Arrowboard option. The unit combines energy-efficient design and high-quality construction to provide the most reliable and cost-effective arrowboards on the market.

Stealth Technology Learn more
V-SWITCH Controller Learn more


  • Arrowboard protected in travel position – safer to use and more efficient to store and transport
  • Low center of gravity reduces wind drag – saving fuel costs
  • Quick and easy to set up in tight work zones – saving time
  • Angle the arrowboard independently towards traffic – safely set and turn arrowboard to traffic
  • Easy maintenance platform – diamond plates make it easy and safe to perform maintenance


  • OPTIBRIGHT TECHNOLOGY – Exclusive lens mold designed for super efficient energy consumption.
  • SOLAR PANELS – Provide maximum solar recharging during all four seasons.
  • SOLAR REGULATOR – Protects the batteries against overcharge, over-discharge and short circuits
  • Designed to run 12 months in most regions without manual charging


  • Powder coating superior finish – impact, humidity, salt spray and rust resistant
  • 4 adjustable stabilizer legs – for trailer stabilization and easy transportation
  • Tongue wheel jack – For easy and safe trailer set up
  • Removable tongue – saves space for storage
  • Manual lift mechanism – for quick deployment
  • U-shaped cradle for arrowboard – For better support during transportation
  • Rugged indexed rod mast brake – The arrow can be positioned on 209 degrees (17 degree increments)
  • Heavy-duty plastic fenders – for durability and easy replacement
  • Plastic battery box – to minimize battery corrosion
  • 2-in. (51 mm) coupler or 3-in. (76 mm) pintle eye – for easy towing


  • Plug & play set up
  • Lane Closure Start Location
  • Mode displayed on arrow sign
  • Road name & mile marker where deployed
  • Direction of Traffic
  • Side of road where deployed
  • Ability to retrofit existing arrowboards


  • 15 LED lamps with OptiBright technology and 2 back LED lights
  • 28 LEDs per lamp
  • Arrowboard panel: 48 in. x 96 in. (1219 mm x 2438 mm)
  • Arrow panel construction: Aluminum
  • Highly-visible orange retroreflective sheeting background
  • Flap system


  • Overall length: 134 in. (3415 mm)
  • Overall width: 96 in. (2438 mm)
  • Operating height : 135.5 in. (3442 mm)
  • Travelling height: 93 in. (2362 mm)
  • Travelling width: 70 in. (1788 mm)


  • Weatherproof battery charger
  • Smart arrowboard
  • Smart arrowboard retrofit
*other options are available to meet your needs.


  • 1 year on complete trailers
  • 2 years on electronic components manufactured by Ver-Mac