Emergency vehicle alarm has receiver in each vehicle that reacts to radio signal transmitted by emergency vehicles when traveling with blue light and emergency siren on by triggering signal in vehicle

摘要

The device has a receiver in each motor vehicle that reacts to a radio signal transmitted over a relatively short range by emergency vehicles when traveling with blue light and emergency siren on by triggering a signal in the vehicle notifying the driver of the proximity of an emergency vehicle with its blue light and emergency siren on.