History Main / PsychicRadar

* In the ''Videogame/{{Undertale}}'' FanFic [[http://tvtropes.org/pmwiki/pmwiki.php/Fanfic/Visiontale Visiontale]], [[https://archiveofourown.org/works/8779618/chapters/20125687 posted on Archive of Our Own]], monsters and humans can do this if they have sufficient knowledge of a place

* ''Series/DoctorWho'': Time Lords are capable of sensing each other as said in "Utopia/Last of the Time lords". [[FridgeBrilliance Since Time Lords periodically change their appearance, then it would make sense for them to evolve a way to recognize each other]].

* In Creator/IsaacAsimov's ''Literature/{{Foundation}}'' series the Second Foundationers and Gaians, having mental powers, can detect the presence of intelligent beings from interplanetary distances. In ''Foundation and Earth'' Bliss can tell the difference between humans, other life such as animals, and even robots.

* ''TabletopGame/Warhammer40000'' has this as a common power of [[PsychicPowers psykers]]. This is particularly useful for battlefield psykers, where this ability is ideal for detecting enemy troop movements or spotting ambushes that are otherwise perfectly camouflaged to conventional perception. This is used on space craft as well, where "[[StealthInSpace going cold]]" is no proof against psychic detection. The measured advice of a few psykers can have a drastic effect on the deployment and success of an entire military.

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* ''{{Champions}}''.

* ''TabletopGame/{{Warhammer 40000}}'' has this as a common power of [[PsychicPowers psykers]]. This is particularly useful for battlefield psykers, where this ability is ideal for detecting enemy troop movements or spotting ambushes that are otherwise perfectly camouflaged to conventional perception. This is used on space craft as well, where "[[StealthInSpace going cold]]" is no proof against psychic detection. The measured advice of a few psykers can have a drastic effect on the deployment and success of an entire military.

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* ''VideoGame/CommandAndConquerRedAlert'': Has the Psychic Sensor: which allows the detection of enemy units outside of Line of Sight and the prediction of their movements. Also the Psychic Radar which psychically revealed sections of the battlefield.
* ''VideoGame/NetHack'': Telepathic characters can see the position of monsters even when physically blinded.
* ''SinsOfASolarEmpire'': the Advent research tree provides players with Forewarning and Acute Premonitions; allowing Advent telepaths to detect hostile fleets bound for the player's territory from increasing numbers of hyperspace jumps distance.
** Of course, the other factions have technological equivalents called [=PSIDARs=].

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* ''Webcomic/{{Project 0}}'': Modding typically looks like this.
* ''Literature/ChakonaSpace'': Chakats are capable of this and have used it several times.

* ''Wiki/SCPFoundation'', [[Characters/SCPFoundation [=Characters/SCPFoundation=]]], [[http://www.scp-wiki.net/scp-280 SCP-280 ("Eyes in the Dark")]]. SCP-280 can detect the direction of the nearest human being without any apparent range limitation.

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* ''Comicbook/TheBoys'': Member of the super team Payback, Mindroid, can use his telepathy to detect the presence of another person in an area at least the size of a building. He can't precisely define an exact location, only whether or not someone's in the room or not and what their surface thoughts are.

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* ''Film/{{Serenity}}'': River's psychic powers let her detect the incoming Reaver ship as it's descending through the atmosphere.

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* ''SholanAlliance'': Most of the main cast, who're almost all telepaths or some stripe, have used their telepathy to detect the presence of others at some point during the series.

* In Creator/IsaacAsimov's ''{{Foundation}}'' series the Second Foundationers and Gaians, having mental powers, can detect the presence of intelligent beings from interplanetary distances. In ''Foundation and Earth'' Bliss can tell the difference between humans, other life such as animals, and even robots.

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Sub-trope of PsychicPowers, closely related to {{Telepathy}}. Commonly used by a SensorCharacter. May also invoke a touch of SensorSuspense. Compare SupernaturalSensitivity, for when a PsychicPower is used to detect the use of other powers and contrast SpiderSense, for a much less focused and instinctual version. See KillingIntent for a version that anyone can do.

Sub-trope of PsychicPowers, closely related to {{Telepathy}}. May also invoke a touch of SensorSuspense. Compare SupernaturalSensitivity, for when a PsychicPower is used to detect the use of other powers and contrast SpiderSense, for a much less focused and instinctual version. See KillingIntent for a version that anyone can do.

* Some meisters in ''SoulEater'' can do this, notably Maka and Joe.

* In ''TheSharingKnife'', a lot. Groundsense can detect any life.

* ''TabletopGame/SpaceHulk'': 1st Edition had a power, ''Scan'' in the game's Temporal deck, which allowed Librarians to identify Genestealer blips. This was later adapted into spin-off ''Space Crusade'' and its successor Advanced Space Crusade via articles in ''White Dwarf''.

* In the ''{{Necroscope}}'' novels people who have this "Talent" are called spotters, and are rarer even than regular Talents.

* ''MartianManhunter'' can pinpoint individuals from miles away, though he often needs to dramatically fly into space in order to do so (presumably so he doesn't hear [[HearingVoices everyone else's thoughts]]).

-->-- '''Darth Vader''' ''StarWars'' "Episode IV: A New Hope"

* ''StarWars'': As per the above quote, Jedi and Sith can sense the presence of other Force users; picking up a single other practitioner even amidst the myriad of minds on the Death Star. They can cloud their presences enough that Vader doesn't know just where Obi-Wan is, but he knows he is there.

* ''{{Series/Firefly}}'': River's psychic powers let her detect the presence of Reavers aboard a hulk drifting past ''Serenity'' and also pick up on the proximity of the blue-handed Alliance agents.

* ''ChakonaSpace'': Chakats are capable of this and have used it several times.

* West End Games ''[[StarWarsExpandedUniverse Star Wars RPG]]'' gave Force users two powers to use for this trope ''Life Sense'' and ''Life Web.'' The former allowed them to sense the presence of a specific person and the latter allowed them to search for the presence of specific species. An issue of ''Planet Hoppers'' had Luke Skywalker visiting a desert world that has had more rain since his last visit, and noticing that it 'feels' different.

* ''NetHack'': Telepathic characters can see the position of monsters even when physically blinded.

Sub-trope of PsychicPowers, closely related to {{Telepathy}}. May also invoke a touch of SensorSuspense. Compare SupernaturalSensitivity, for when a PsychicPower is used to detect the use of other powers and contrast SpiderSense, for a much less focused and instinctual version.

* ''DungeonsAndDragons''.

* ''SpaceHulk'': 1st Edition had a power, ''Scan'' in the game's Temporal deck, which allowed Librarians to identify Genestealer blips. This was later adapted into spin-off ''Space Crusade'' and its successor Advanced Space Crusade via articles in ''White Dwarf''.

* ''{{Traveller}}''. The Telepathy psionic ability allowed the user to perform Life Detection. This involved detecting the minds of creatures in the area, including the number and type of minds present (animal, human, alien). It could be set to ignore unimportant animals and bacteria.

* ''[[{{TabletopGame/Warhammer40000}} Warhammer 40,000]]'' has this as a common power of [[PsychicPowers psykers]]. This is particularly useful for battlefield psykers, where this ability is ideal for detecting enemy troop movements or spotting ambushes that are otherwise perfectly camouflaged to conventional perception. This is used on space craft as well, where "[[StealthInSpace going cold]]" is no proof against psychic detection. The measured advice of a few psykers can have a drastic effect on the deployment and success of an entire military.