Siren (noisemaker)

From Simple English Wikipedia, the free encyclopedia

This article is about a device producing loud noises. For the mythological creatures, see siren
A pneumatic siren. Such sirens can be found on many buildings
A pneumatic siren. Such sirens can be found on many buildings

A siren is a device that is able to produce a loud noise. Sirens can be found on emergency vehicles, like ambulances. People also installed them on buildings, to warn of tornados, or air raids.