An impact-activated safety device that warns roadway workers and errant vehicle drivers simultaneously. 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 them critical reaction time to move out of harm's way.
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