Fast-820 Radar Speed Trailer


The RU2 Fast-820 Speed Radar Trailer features an 18” tall full matrix character display for easy viewing and quick driver recognition over 1,200 feet downrange. When deployed, the Fast-820 speed sign stands over 8 feet tall. The speed limit sign folds down creating a lower trailer profile for easy transport and storage. Standard features include adjustable high and low blanking speeds, flashing digit violator alert and, traffic management arrows.

Popular options on our radar speed signs include our enhanced violator alerts, a flashing strip of red and blue LED’s and/or the “SLOW DOWN” message in red LED’s when an approaching vehicle does not heed the flashing digit alert. Also available is the RU2 System’s “Traffic Count” Data Acquisition Package, which records the time, date, and speed of oncoming vehicles without the use of cumbersome pneumatic tubes placed across the street!

Product Details:


  • 2″ round tubular steel Space-Frame chassis
  • White polyester powder coat finish over high zinc epoxy primer, UV and graffiti resistant
  • (3) Stabilizer jacks with a 750 lb capacity each. Capable of raising the trailer up to 8″ from normal height
  • 4.80 x 13 ST tires on 5 lug automotive type hubs
  • 2″Class II ball coupler
  • Full 7″ wide, 14 gauge steel fenders
  • 2000 lb rated axle
  • Leaf spring suspension
  • Taper roller bearings
  • 9′-1″ L x 4′-7″ W x 8′-3″ H (deployed, 5′-10″ in transit)
  • Curb Weight: 565 lbs. (Single battery config.)
  • Tongue Weight: ~40 lbs. (Single battery config.)


  • Single directional K-band radar unit
  • 18” Amber AlInGaP LED Full Matrix (rounded) display characters
  • Display protected by 3/16” GE Lexan® with a smoked, non-glare finish
  • RF Key fob for remote parameter setup, 100+ ft. range
  • Automatic intensity adjustment to ambient light conditions
  • Fold-down Speed Sign rack / 24″ x 30″ MUTCD R2-1 conforming
  • Keyed On/Off switch
  • One (1) Group 27 AGM aviation-grade battery (92 A/hr)
  • Single-cycle 24 hr. ON/OFF clock
  • Flashing Digit Violator Alert – 1 MPH/KPH increments
  • Directional Traffic Management Arrow Patterns
  • Minimum Display Speed / High-Speed Cut-off
  • Unit defaults to last settings upon power-up


  • RU2 “Traffic Count” Data Acquisition Package
  • 50 Watt Solar Panel
  • Additional AGM batteries, max. 6 x 150 A/hr. total
  • Wireless communications
  • Trailer cover
  • Spare Tire
  • Security Options:
    • GPS Vehicle Theft Deterrent System
    • Wheel boot
    • Alarm System
    • Locking Lugs
    • Cable Lock
    • Coupler Lock
  • Corrosion Protection Plus+
    • Galvanized Wheels or,
    • Machined Aluminum Wheels
    • LINE-X® spray-on polyurea protective coating
  • Custom powder coat colors available
  • Violator alerts
    • Red LED “SLOW DOWN”
    • Red-Blue Flashing Bars
    • White flashing strobe

Technical specifications are subject to change without notice.