Emergency beacon

An Emergency beacon was a transmission device employed by the Rebel Alliance during the Galactic Civil War. It was used by Alliance operatives when they were in trouble, signaling other members of the Alliance during times of distress. Sometime before the Battle of Endor, when Princess Leia Organa was preparing for a diplomatic mission to the planet Yinchorr, Luke Skywalker forced Leia Organa to take an emergency beacon with her. The gesture proved to be life-saving, as Organa was attacked and captured by Imperials led by Governor Marcellin Wessel. Due to the emergency beacon, Organa was able to be rescued with the Millennium Falcon.

Appearances

 * Star Wars 38: Riders in the Void
 * A Boy and His Monster: The Rancor Keeper's Tale
 * Star Wars 86: The Alderaan Factor