Emergency vehicle equipment
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Emergency vehicle equipment is any equipment fitted to, or carried by, an emergency vehicle, other than the equipment that a standard non-emergency vehicle is fitted with.
An ambulance with two red revolving lights (beacons) mounted above two flashing red lights, with two speakers between for the vehicle's electronic siren. Also seen are two antennae; the one seen between the two speakers is for a two-way radio, while the one seen in front of the flashing light on the left is probably for the vehicle's conventional AM/FM radio.
Composite picture of two ambulance vehicles in different light sources showing retroreflective high visibility battenburg markings in light and dark conditions
A British paramedic fly-car vehicle with high visibility Battenburg colour scheme, popular in the UK
An American fire engine lit up at night. Notice the use of lights and reflective markings on the vehicle.
Air horn
Videos
An air horn is a pneumatic device designed to create a loud noise for signaling purposes. It usually consists of a source which produces compressed air, which passes into a horn through a reed or diap
Steam whistle from a supertanker, in Merseyside Maritime Museum, United Kingdom
Diagram of a typical locomotive air horn power chamber, showing operation
Leslie model S5T five-chime locomotive air horn.
A small portable air horn used for sporting events, boating, or safety, powered by a can of compressed gas. It is operated by pressing a button on the top.