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The SonoBlaster Dual Alert work-zone intrusion alarm is an impact-activated safety device that warns roadway workers and errant motorists simultaneously to help prevent crashes and injuries in work zones. Upon impact by an errant vehicle, SonoBlaster’s built-in CO2-powered horn blasts at 125 dB to signal workers that their protective zone has been violated, allowing them critical reaction time to move out of harm’s way. SonoBlaster’s loud alarm can alert distracted or drowsing drivers, encouraging them to steer clear of work zone or apply brakes prior to reaching workers or equipment. SonoBlaster, which mounts to traffic cones or barricades, requires no electrical power. Transpo Industries Inc., New Rochelle, N.Y.