Batman: Guardian of Gotham Wiki
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The Batwave was an alarm system created by Batman.

History[]

After Batman became an outlaw thanks to the efforts of Lew Moxon he could no longer rely on the police to give him information. Because of this Bruce Wayne invented a computer program that was connected to every security system in the city, which he called the Batwave. A giant bat would flash orange on the Batcomputer and would make a loud noise. This would tell Batman of any crime happening in Gotham City. After Batman's name was cleared he and Gordon went back to using the Batsignal.

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