This article describes the Unit Type (StarCraft) or Attributes (StarCraft II). For information on the device, see here.

A detector is a unit or structure with the ability of Detection: it is able to reveal camouflage, permanently cloaked, burrowed, or hallucinations enemy units. Having enough Detectors across the map is an important aspect of any player's strategy, as they will provide intelligence on potentially fatal attacks from otherwise unstoppable hidden units.

While every race and faction has a mobile detector unit, they also have a passive stationary defense building that provides detection, such as Photon Cannons, Spore Crawlers, and Missile Turrets. Detector buildings lack the mobility of units, but make up for it by being much more durable and by being equipped with more powerful weapon systems. Regardless of which race a player uses, if the opponent uses cloaked or burrowed units, having a Detector in your army before engaging your opponent is pivotal.


Detectors can be stationary (buildings) or mobile (units). Once a detector uncovers a cloaked unit, any friendly unit can fire on it. This capability is especially critical when faced with a ghost targeting a nuclear missile or an arbiter providing cover for a number of units. Detector units trapped in Lockdown or hit by Optical Flares will lose their ability to detect.

List of Detector unitsEdit




Special AbilitiesEdit

Ensnare, Maelstrom, Plague, Stasis field and Lockdown will reveal cloaked protoss and terran units caught in their areas of effect for the ability's duration. Burrowed zerg units are unaffected by these abilities except Stasis Field while burrowed, but if hit by these abilities while above ground, they will be revealed if they burrow. Irradiate reveals all cloaked units it affects and also affects burrowed zerg units. EMP Shockwave will not affect protoss cloaked units or zerg burrowed units, but terran ghosts and Wraiths will be affected and lose all their energy, causing them to immediately decloak.

Non-Buildable DetectorsEdit

These detectors can not be built/transformed/warped by any worker unit.



StarCraft IIEdit

Units in Starcraft II are tagged with one or more Attributes that determine bonus damage, affect targeting, and/or can influence spells and abilities.

Detector SC2 Icon1

This unit or structure can detect cloaked, burrowed, duplicated and hallucination enemies.


List of Detector unitsEdit

In StarCraft II detectors can reveal cloaked, permanently cloaked, burrowed, or hallucinations enemy units.[1] The Detector units, categorized by race, are listed below.





Spells and AbilitiesEdit

The following abilities will reveal burrowed, cloaked, or hallucinated units for a short time.

The orbital command has the ability to temporarily clear the fog of war and detect all cloaked or burrowed units within the target area.

This can be executed anywhere on the map at any time. The circular view shown lasts for about 10 seconds before changing to the fog of war static view.

Analogous to the ComSat station in StarCraft.

Hotkey C
Cost 50 Energy Terran SC1
Duration 12Time SC2 Game1

Drains 100 shields from protoss units and drains 100 energy[2] from units in the area of effect, including friendly units. Shield upgrades have no effect.

The EMP field has an area-of-effect of 1.5.[3]

Cloaked units are revealed for a short time. Burrowed units are not.

Hotkey E
Cost 75 Energy Terran SC1
Range 10[4]
SC2 Fungal Growth Icon
Fungal Growth

An infestor launches a projectile with a speed of 15;[5] enemy units within the area of effect (2.25 radius) have their speed reduced by 75% and suffer 30 damage over 3 seconds. Cloaked and burrowed units are revealed.

Fungal Growth stops the use of Blink, Tactical Jump and prevents units from burrowing or unburrowing. Affected units can not be loaded into buildings or transports.

Hotkey F
Cost 75 Energy Terran SC1
Range 10[5]
Duration 3 secondsTime SC2 Game1
Purchased from Automatically researched
Revelation SC2 Icon1

Enemy units and structures in an area grant vision to the player for 30 seconds.

Reveals cloaked or burrowed units or structures (LotV only).

Cost 75 (50 LotV) Energy Terran SC1
Range 12[6]
Duration 30Time SC2 Game1
Cooldown 3Time SC2 Game1

Stuns enemies in a large area around Kerrigan and deals 100 damage to them.

Heroic units are slowed instead.

Reveals cloaked or burrowed units or structures.

Hotkey D
Cooldown 180 (Initial cooldown=600)Time SC2 Game1
Campaign Acquisition
Unlock Reach Kerrigan Level 2.


ISeeDeadUnits SC2 Icon1 I See Dead Units

10 Achievement SC2 Game1


Destroy 10 cloaked or burrowed units in a single Melee game.


  1. Blizzard Entertainment. StarCraft II. (Activision Blizzard) (in English). July 27, 2010
  2. Lylirra. 2011-02-25. StarCraft II Patch 1.3.0 PTR Notes. Blizzard Entertainment. Accessed 2011-02-25.
  3. Blizzard Entertainment. 2011-11-08. Patch 1.4.2 Now Live!. Blizzard Entertainment. Accessed 2011-11-16.
  4. Crygil. 2010-03-25. Patch Notes - Beta Patch 6. StarCraft II General Beta Forum. Accessed 2010-03-25.
  5. 5.0 5.1 Spyrian. 2012-12-18. Beta Balance Update #10 – December 18, 2012. Heart of the Swarm Beta Discussion Accessed 2012-12-19.
  6. 2015-09-03, Legacy of the Void Beta Balance Update -- September 3, 2015. Blizzard Entertainment, accessed on 2015-09-06