For the version summoned by Grineer units in any Mission, see Regulator.

Detects intruders.

Sensor Regulators are a variant of the Grineer Regulator drone that appear in Spy and Sealab Sabotage missions. Unlike normal Regulators, that simply float in place, Sensor Regulators are mobile, and will move to patrol a location in search of enemies. While unarmed, Sensor Regulators are equipped with cameras that will trigger an alarm upon seeing a player or taking damage, alerting nearby Grineer and activating the relevant security measures (such as a Data Vault's purge sequence).


  • Their sensor beams do pass through paned windows.
  • It can be possible to pass underneath their sensor beam without triggering the alarm.
  • Damage to Sensor Regulators taken from companions does not seem to always trigger the alarm.
  • Sensor Regulators are revealed on the minimap using Mod TT 20px.png Enemy Sense or Mod TT 20px.png Enemy Radar.
  • Sensor Regulators do not count towards Exterminate objectives. They also do not trigger or remove Stealth Attack Affinity Bonuses, being considered an environmental object instead of a unit.
  • Sensor Regulators will not trigger the alarm if they are destroyed with a single hit. Silent, high-damage weapons such as the Dread.png Dread, Opticor.png Opticor, or ParisPrime.png Paris Prime are all ideal for efficiently dealing with them; other high-damage weapons (e.g. VaykorMarelok.png Vaykor Marelok, LexPrime.png Lex Prime) can also use Mod TT 20px.png Hush or Mod TT 20px.png Suppress for a similar effect.
    • Note that the alarm will trigger if the Regulator takes damage but is not instantly destroyed by that singular burst of damage, so sustained weapons such as the Gammacor.png Gammacor and SynoidGammacor.png Synoid Gammacor should be avoided despite their high damage output.
  • While playing in a squad, it is suggested to holster any weapons with Syndicate Radial Effects, since their damaging explosion can be charged with shared affinity mechanics.

Utilizing Abilities[]

Sensor Regulators will not raise alarms if:[]

  • AshIcon272.png Ash uses SmokeScreen130xDark.png Smoke Screen;
    • (the stun portion of Smoke Screen will neither stagger nor alert Regulators).
  • EquinoxIcon272.png Equinox's Nightform Rest prevents sensor beams from detecting players passing through. Regulators will, however, keep patrolling as normal.
  • ExcaliburIcon272.png Excalibur's uses RadialBlind130xDark.png Radial Blind;
  • FrostIcon272.png Frost uses Freeze130xDark.png Freeze effectively allowing any player to move past them without triggereing alarms. However, shooting regulators will still trigger alarms.
  • HydroidIcon272.png Hydroid submerges in Undertow130xDark.png Undertow to hide from the sensor beams;
    • destroying them with Undertow130xDark.png Undertow will not trigger alarms.
  • IvaraIcon272.png Ivara's Quiver130xDark.png Quiver and/or Prowl130xDark.png Prowl are active when passing through sensor beams;
    • Sleep Arrow will cause Regulators to stop moving, but passing through sensor beams will still trigger alarms.
  • LimboIcon272.png Limbo uses Stasis130xDark.png Stasis and walks past the sensors. Or uses Banish130xDark.png Banish on the Sensor Regulator destroying it in one shot.
    • Failing to "banish" in one-shot, will cause alarms to be triggered.
  • LokiIcon272.png Loki's activates Invisibility130xDark.png Invisibility to pass through the sensor beams;
  • RhinoIcon272.png Rhino uses RhinoCharge130xDark.png Rhino Charge to bypass the sensor beams;
  • NekrosIcon272.png Nekros's Terrify130xDark.png Terrify causes regulators to turn away, moving away from the player;
  • NovaIcon272.png Nova teleports a regulator with WormHole130xDark.png Worm Hole only causes regulators to try returning to original patrol path;
  • NyxIcon272.png Nyx's MindControl130xDark.png Mind Control affects it to not recognize players passing through the sensor beams;
  • TrinityIcon272.png Trinity marks or kills it with WellOfLife130xDark.png Well Of Life;
  • If it sees ability-spawned manifestations (entities) such as ChromaIcon272.png Chroma's Effigy130xDark.png Effigy, LokiIcon272.png Loki's Decoy130xDark.png Decoy, SarynIcon272.png Saryn's Molt130xDark.png Molt;
  • When Players are hidden by Prisma Shade's Mod TT 20px.png Ghost or Huras Kubrow's Mod TT 20px.png Stalk;

Sensor Regulators ​​​​​will raise alarms if:[]

  • AshIcon272.png Ash uses Teleport130xDark.png Teleport on a Regulator, even while under the effect of SmokeScreen130xDark.png Smoke Screen;
  • BansheeIcon272.png Banshee does not destroy regulators outright with SonicBoom130xDark.png Sonic Boom;
    • (Using Silence130xDark.png Silence before SonicBoom130xDark.png Sonic Boom will damage and move Regulators around, but not always cause it to trigger the alarms);
    • Sonar130xDark.png Sonar will only show Regulators on minimap, but will not highlight weakpoints.
  • EquinoxIcon272.png Equinox hits, but does not one-shot with the dayform's Maim;
  • ExcaliburIcon272.png Excalibur uses SlashDash130xDark.png Slash Dash to pass the beam;
  • LimboIcon272.png Limbo manually deactivates Stasis130xDark.png Stasis after walking passing through sensor beams.
  • InarosIcon272.png Inaros fails to destroy regulators in one-shot with Desiccation130xDark.png Desiccation;
    • Trying to use Devour130xDark.png Devour has no effect on Regulators.
  • TrinityIcon272.png Trinity fails to destroy with EnergyVampire130xDark.png Energy Vampire;
  • ValkyrIcon272.png Valkyr's RipLine130xDark.png Rip Line will damage the Regulator but will not pull it in. Alarms will be triggered if the ability deals a sufficiently high amount of damage per cast.
  • VaubanIcon272.png Vauban places a bounce pad directly on the Regulator;
    • Bastille130xDark.png Bastille has no effect except applying its particles, neither keeping them in place, nor disabling the alarms.

Sensor Regulators' other effects and interactions:[]


  • Can spawn as an Eximus unit as either Energy Leech or Leech variant, while also having drastically more health, armor, and Overguard. These units start spawning in Tier 2 (Level 15-25) Spy missions, and spawn more frequently in Tier 3 (Level 25+).


  • On some occasions, attempting to damage the drones from behind will cause them to not trigger the alarms.
  • When viewed within their Codex, the Sensor Regulator will oddly slowly fall backwards until eventually falling to the ground, however the thruster effects will still remain in place.
  • The Sensor Regulator can be scanned indefinitely, resulting in consuming a Codex Scanner even if the entry is completed. This also applies to the Helios's Mod TT 20px.png Investigator precept.


Patch History[]

Hotfix 31.5.8 (2022-05-11)

  • Grineer Sensor Regulator Eximus (the drones from Grineer Sealab Spy mission) will only spawn as Energy Leech and Health Leech.
    • They are unable to animate the other Eximus functions, which was making it difficult/impossible to telegraph their attacks.
    • Also fixed their Eximus abilities to actually function.

See also[]