Work Zone Intrusion Alarm

More Product Info

Transpo's SonoBlaster® Work Zone Intrusion Alarm is an impact-activated safety device that warns work crews and errant vehicle drivers simultaneously to help prevent crashes and injuries in work zones.

Work zone injuries involving workers harmed by their own equipment (such as back-up accidents) is a growing problem. SonoBlaster® audibly pinpoints the source of danger by warning workers when heavy equipment enters their "safe" area.

The NCHRP 350 accepted SonoBlaster® mounts on typical work zone barricades, cones, drums, delineators, A-frames and other barriers. Upon impact of an errant vehicle, the SonoBlaster®'s built-in CO2 powered horn blasts at 125 dB to signal workers that their protective zone has been violated, giving the m critical reaction time to move out of harms way.

Easy to Use

The SonoBlaster® unit is cocked using a simple keychain tool. The unit is then placed on the roadway while in "safe" mode. The control knob is then rotated from "safe" to "ready" position. The unit is then "armed" and ready to protect the work zone.


  • Construction Zones
  • Maintenance Areas
  • Flagger Protection
  • Striping & Marking
  • Site Inspection/Repair
  • Paving and Grading
  • Survey Crews
  • Intra-Work Zones
  • Patching/Pothole Repair
  • Sweeping and Cleaning
  • Breakdown Lanes
  • RR Grade Crossings

  • Tree Trimming/Mowing
  • Equipment Loading
  • Snow Removal/Deicing
  • Water Main Breaks
  • Pedestrian Crossings
  • Runway Crews
  • Police/Fire Stations
  • Rescue Operations
  • Hazmat Scenes
  • Military Operations
  • Signal/Light/Sign Repair
  • Homeland Security

Intertraffic Innovation Award 2010

The winners of the traffic industry's most sought-after prizes were revealed during the opening ceremony at Amsterdam RAI, March 23, 2010. Shortlisted for the 'Safety' category was Transpo Industries, Sonoblaster® (USA - stand 04.410)

transpoIndustries logo

Transpo Industries is a transportation infrastructure safety and materials company, founded in 1968. Its executive management has over 130 years of collective industry expertise and has been working together for decades. Transpo’s influence extends far beyond its sales and engineering operations.


Contact Info

20 Jones Street
New Rochelle, NY 10801

Phone: 914.636.1000
Toll Free: 800.321.7870

Fax: 914.636.1282