Emergency siren

An emergency siren was a noise-making system that produced a penetrating warning sound. Such devices were installed on many facilities and could be activated to give the order to evacuate the premises.Jedi Apprentice: The Dark Rival During the height of the Galactic Empire, an emergency siren was used at the Imperial Palace on Coruscant to draw attention to the presence of an intruder in the security perimeter.Vader's Quest 2
Many starships were also equipped with such sirens, including the Hammerhead-class cruisers that served with the Galactic Republic Navy during the Jedi Civil WarStar Wars: Knights of the Old Republic and the modern-day CR90 corvettes. In these cases, sirens were used to indicate damage and other dangerous situation such as entering combat.
==Audio==
==Appearances==
*Star Wars: Knights of the Old Republic
*The Old Republic: Revan 
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*Star Wars: The Old Republic
*Jedi Apprentice: The Dark Rival
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*Star Wars: Revenge of the Sith novelization 
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*Star Wars: A New Hope novelization 
*Vader's Quest 2
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*Star Wars: Return of the Jedi novelization 
==Notes and references==
Category:Alarm systems