Martinshorn, signal horn on an emergency vehicle, compressed air

Martinshorn, signal horn on an emergency vehicle, compressed air fanfare, ambulance, signal horn, siren Stock Photo - Alamy

MARTIN-HORN® 2097 GM » Max B. Martin GmbH & Co. KG

Martinshorn, signal horn on an emergency vehicle, compressed air fanfare, ambulance, signal horn, siren Stock Photo - Alamy

MARTIN-HORN® 2298 GM » Max B. Martin GmbH & Co. KG

Ambulance siren hi-res stock photography and images - Alamy

Buy the EU compliant emergency air signal horn. Provides a loud warning of 120 dB and is ideal for use on building sites as a temporary alarm

Emergency Air Signal Horn

Emergency signal hi-res stock photography and images - Alamy

Air ambulance vehicle hi-res stock photography and images - Alamy

Air horn hi-res stock photography and images - Alamy

German Martinshorn (Pressluft) 2297GM - Audio Modifications

Why don't U.S. Emergency vehicles use the 'European siren' to get drivers attention? - Quora

Acme Signal Horn 566

Loud air horn hi-res stock photography and images - Alamy

Emergency Air Signal Horn