Sensor/Legends

This article details a subject that falls under the Legends brand.The subject of this article appeared Before the Republic.The subject of this article appeared in the Old Republic era.The subject of this article appeared in the Rise of the Empire era.The subject of this article appeared in the Rebellion era.The subject of this article appeared in the New Republic era.The subject of this article appeared in the New Jedi Order era.The subject of this article appeared in the Legacy era.

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> **Crewman**Sir, sensors detected something near drone vessel 171 but it *disappeared* almost immediately. We think it was just an echo...**Captain**No, *this* is the moment we've been *waiting* for. The Rebels have made their move.

A **sensor** was one of any of a range of complex devices that enhanced something's ability to receive data about its environment.

## History

 File:Falcon-ROTJGCCHVCD.jpg
All starships carried sensors, as did most vehicles and droids. Depending on the sensor, they could detect and analyze many forms of data, such as electromagnetic radiation, sound and vibration, gravity, nuclear radiation, magnetic fields, heat, pressure, trace chemicals, or the emissions of other sensors.

Sensors were, of course, not perfect. Not only could they fail to detect what they should or present false "ghost" images, they could be interfered with by natural phenomena like solar radiation, hydrogen clouds, asteroid fields, and potent gravity wells; and by artificial phenomena such as sensor jammers, sensor decoys, shield camouflage, stealth technology, and, of course, cloaking devices.

## Sensor types

* Aural sensors
* Crystal gravfield traps
* Dedicated energy receptors
* Electro photo receptors
* Full-spectrum transceivers
* Heat-pit sensors
* Hyperwave signal interceptors
* Life form indicators
* Radiation sensors
* Sonic imprint sensors

## Appearances

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* *Star Wars: Knights of the Old Republic II: The Sith Lords*
* *Star Wars: The Old Republic*
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* *Darth Maul: Shadow Hunter*
* *Republic Commando: True Colors*
* *Star Wars: The Clone Wars* – "Rookies"
* *Star Wars: The Clone Wars* – "Gungan Attack"
* *Star Wars: The Clone Wars* – "Revival"
* *Star Wars: The Clone Wars* – "Sabotage"
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* *Han Solo at Stars' End*
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* *Domain of Evil*
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* *Star Wars* (radio drama)
* *Star Wars 3: Death Star!*
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* *Star Wars 12: Doomworld!* (Mentioned only)
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* *Scoundrel's Luck*
* *Jedi's Honor*
* *The Snow Demons!* (Mentioned only)
* *Showdown* (Mentioned only)
* *Tatooine Manhunt*
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* *Battle for the Golden Sun*
* *Otherspace*
* *Riders of the Maelstrom*
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* *Black Ice*
* *Death in the Undercity*
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* *Graveyard of Alderaan*
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* *Mission to Lianna*
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* *Debts to Pay*
* *Beyond the Rim*
* *The Jewel of Yavin*
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* *Operation: Elrood*
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* *Side Trip*
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* *Star Wars*: Episode V *The Empire Strikes Back*
* *Star Wars Episode V: The Empire Strikes Back* novel
* *Star Wars Episode V: The Empire Strikes Back* junior novel
* *The Empire Strikes Back: A Storybook* (Mentioned only)
* *Star Wars 39: The Empire Strikes Back: Beginning*
* *Star Wars 45: Death Probe*
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* *Shadows of the Empire* novel
* *Shadows of the Empire* junior novelization
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* *Star Wars*: Episode VI *Return of the Jedi*
* *Star Wars Episode VI: Return of the Jedi* novel
* *Star Wars Episode VI: Return of the Jedi* junior novel
* *Star Wars: Battlefront II*
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* *Fate of the Jedi: Vortex*

## Sources

* *A Guide to the Star Wars Universe*
* *Star Wars: The Roleplaying Game*
* *The Star Wars Sourcebook*
* *Starfighter Battle Book: X-wing vs TIE Interceptor*
* *The Star Wars Rules Companion*
* *Galaxy Guide 2: Yavin and Bespin*
* *Galaxy Guide 3: The Empire Strikes Back*
* *Imperial Sourcebook*
* *Galaxy Guide 6: Tramp Freighters*
* *The Rebel Alliance Sourcebook*
* *Death Star Technical Companion*
* *Cracken's Rebel Field Guide*
* *Star Wars Miniatures Battles*
* *Heir to the Empire Sourcebook*
* *Star Wars: The Roleplaying Game*, Second Edition
* *Dark Force Rising Sourcebook*
* *Wanted by Cracken*
* *Galaxy Guide 7: Mos Eisley*
* *Twin Stars of Kira*
* *Galaxy Guide 8: Scouts*
* *Galaxy Guide 9: Fragments from the Rim*
* *Dark Empire Sourcebook*
* *Planets of the Galaxy, Volume Three*
* *Star Wars Technical Journal of the Planet Tatooine*
* *The Movie Trilogy Sourcebook*
* *Death Star Technical Companion*, Second Edition
* *Han Solo and the Corporate Sector Sourcebook*
* *Star Wars Miniatures Battles*, Second Edition
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* *Galaxy Guide 10: Bounty Hunters*
* *The Last Command Sourcebook*
* *The Rebel Alliance Sourcebook*, Second Edition
* *Galaxy Guide 6: Tramp Freighters*, Second Edition
* *Cracken's Rebel Operatives*
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* *Star Wars Sourcebook*, Second Edition
* *Imperial Sourcebook*, Second Edition
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* *Galaxy Guide 11: Criminal Organizations*
* *The Star Wars Planets Collection*
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* *Classic Campaigns*
* *Star Wars Technical Journal*
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* *Platt's Starport Guide*
* *Goroth: Slave of the Empire*
* *Flashpoint! Brak Sector*
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* *Galladinium's Fantastic Technology*
* *Alliance Intelligence Reports*
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* *Galaxy Guide 2: Yavin and Bespin*, Second Edition
* *Galaxy Guide 12: Aliens — Enemies and Allies*
* *Galaxy Guide 1: A New Hope*, Second Edition
* *The DarkStryder Campaign*
* *Galaxy Guide 5: Return of the Jedi*, Second Edition
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* *Heroes & Rogues*
* *The Kathol Outback*
* *The Truce at Bakura Sourcebook*
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* *The Jedi Academy Sourcebook*
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* *The Kathol Rift*
* *Shadows of the Empire Sourcebook*
* *The Thrawn Trilogy Sourcebook*
* *Galaxy Guide 3: The Empire Strikes Back*, Second Edition
* *Tales of the Jedi Companion*
* *Live-Action Adventures*
* *Star Wars: The Roleplaying Game, Second Edition, Revised and Expanded*
* *Star Wars: The Power of the Force* (1995)
* *The Secrets of Star Wars: Shadows of the Empire*
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* *Shadows of the Empire Planets Guide*
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* *Gamemaster Toolkit: Live-Action Adventures*
* *Star Wars Gamemaster Screen, Revised*
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* *Wretched Hives of Scum & Villainy*
* *Introductory Adventure Game*
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* *Cynabar's Fantastic Technology: Droids*
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* *Boba Fett's Armor: An Essential Guide to a Walking Weapon*
* *Gundark's Fantastic Technology: Personal Gear*
* *The Dark Side Sourcebook*
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* *Star Wars: Rogue Squadron: The Official Nintendo Player's Guide*
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* Template:FFCite
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* *Knights of the Old Republic II: The Sith Lords: Prima Official Game Guide*
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* *The Complete Star Wars Encyclopedia*
* *Millennium Falcon Owner's Workshop Manual*
* *The Essential Guide to Warfare*
* Template:FFGTCG
* *Star Wars: Edge of the Empire* Core Rulebook
* *Star Wars: Force Collection* Card: Del Goren
* *Enter the Unknown*
* *Suns of Fortune*
* *Dangerous Covenants*
* StarWars.com Encyclopedia holographic disguise matrix in the Encyclopedia (content now obsolete; backup link)
* StarWars.com Encyclopedia Imperial probe droid in the Encyclopedia (content now obsolete; backup link)
* StarWars.com Encyclopedia Luxury 3000 space yacht in the Encyclopedia (content now obsolete; backup link)
* StarWars.com Encyclopedia Pirate Speeder Tank in the Encyclopedia (content now obsolete; backup link)
* StarWars.com Encyclopedia Retail Caucus droid in the Encyclopedia (content now obsolete; backup link)
* *Star Wars: Age of Rebellion* Core Rulebook
* *Star Wars: Imperial Handbook: A Commander's Guide*
* *Fly Casual*
* *Strongholds of Resistance*

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