PetCarrier DEPetDethcube ArcDrone PetDjinn PetCorpusMelee DEPetShade PetTaxon DEPetWyrm
Dethcube Diriga Djinn Helios
Taxon Wyrm
With 'Investigator' as its unique Precept and the 'Deconstructor' as its weapon, the versatile Helios Sentinel acts both as a lethal guardian and as an automatic codex scanner.

Helios is a Corpus support Sentinel pre-equipped with the Glaive-esque Deconstructor as its default weapon and the Investigator precept to assist the player with Codex scans.

Additionally, Detect Vulnerability can be used to scan for weak points on enemies with already completed Codex entries.

Helios specific Precept mods
Name Description
Targeting Receptor Sentinel will attack the first visible enemy in range. Increasing level increases range.
Investigator Allows the Helios Sentinel to scan objects and enemies it encounters. This consumes Codex Scanner charges.
Detect Vulnerability Allows the Helios Sentinel to reveal weak points on enemies that have had previously completed Codex scans.
List of Sentinel Mods
Manufacturing Requirements
Time: 24 hrs
Rush: Platinum64 35
MarketIcon Market Price: Platinum6475 Blueprint2 Blueprints Price: Credits6415,000
Energy Lab Research •ClanAffinity643,000
Time: 72 hrs
Prereq: Lanka
LeaderBadgeGhostHolo x1   LeaderBadgeShadowHolo x3   LeaderBadgeStormHolo x10   LeaderBadgeMountainHolo x30   LeaderBadgeMoonHolo x100

Precept Mod Notes Edit

  • The Investigator precept draws its scans from the user's pool of Codex Scanners. The Codex Scanners must be equipped in the Gear interface in Arsenal in order for Helios to use them.
  • Helios emits a beeping sound cue upon starting a scan. During the scanning, the target is highlighted in Helios' energy color. When the scan is complete, the scan target will flash white and a sound effect will play. Helios scans also grant Affinity rewards (and stealth bonus, if the scan target is hostile and has not been alerted to your presence). As long as an object or enemy is partially visible (healthbar+name appears when aiming at a body part) it can be scanned.
    • Whilst Investigator does automatically expend scan charges, aiming at an object or enemy will cause Helios to scan that particular target first.
    • Helios will scan the plant life and reward extracts for Antitoxins as long as the plant's Codex entry isn't completed.
    • With Investigator installed, Helios periodically reveals close-by items of interest, such as consoles or Defense objectives, as orange silhouettes, identical in effect to being zoomed in with the Codex Scanner.
  • When scanning without any other instructions (such as the user aiming at a specific target), Helios can occasionally scan targets through walls and other solid objects.
  • Helios can continue scanning an enemy even if it dies, as long as the corpse is still visible and within scanning range.
    • The corpse will continue to be scanned even if shot away with a weapon that pins enemies, such as the Paris, until the corpse flies outside of the scanning range.
  • Helios can scan bosses through the boss's opening cinematic.
  • Helios will not automatically scan friendly units, such as during Invasions. (Possible bug.)
  • Helios can attack while scanning and vice versa. However it will not attack the target it is currently scanning until the scan is completed. (Unless you have Targeting Receptor in a higher priority slot than Investigator).
  • As of Update 18.0, Helios can use a player's Synthesis Scanner (if one is in your gear) to scan targets if no Codex Scanner is available. If only the Synthesis Scanner is equipped, the Helios' scans do not count towards Simaris reputation.
    • If one has a Sol-Battery Widget, these scans will not drain charges from the Synthesis Scanners, allowing for free scanning.


  • Helios is currently the only Sentinel able to use the Deconstructor Sentinel melee weapon.
  • Helios doesn't take damage whenever it passes through laser barriers. This may be due to its Corpus origin.
    • However, its shields will still be reduced to 0.
  • Helios tends to aim at head level, enabling it to have a higher chance of landing head shots. On the downside, it tends to aim at where the head should be rather than where it is, making it miss shorter targets like MOAs and targets that are crouching.
    • This is only the case with the Deconstructor. It aims just like any other Sentinel with other Sentinel weapons.
  • Helios is the cheapest Sentinel Blueprint to acquire, requiring only 15,000Credits64 Credits from the Dojo Energy Lab to purchase.
    • However, it is the second most expensive Sentinel to produce, requiring 1 Forma, 300 Oxium, and 10 FieldronsDjinn is the most expensive Sentinel.
  • Helios will not scan an enemy if its codex entry is complete.



  • Helios was introduced in Update 12.5.
  • Helios (/ˈhiːli.ɒs/; Ancient Greek: Ἥλιος Hēlios; Latinized as Helius; Ἠέλιος in Homeric Greek) was the personification of the Sun in Greek mythology. Known as the God of the Sun.
  • Helios is the first Corpus Sentinel.
    • Despite not being of Tenno design, the Helios has a prime variant.
  • Helios is vaguely shaped like a horseshoe.
  • Helios's model was designed by Lucas Hug.
  • Helios was featured in The New Strange quest, making it the first sentinel to appear as a Rescue target.
  • Lockjaw & Sol's codex entry revealed Alad V designed the Helios.


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Patch HistoryEdit

Update 22.15
  • Fixed Helios' Detect Vulnerability precept not applying the Damage multiplier on enemies seated in mounted guns or Jesters riding Kuva Guardians.
  • Fixed cases where Helios began vibrating when equipped with the Investigator precept.

Hotfix 20.4.6

  • Fixed a crash from Helios' Detect Vulnerability Precept.

Update 19.12

  • Deconstructor Prime can now be used on non-Prime Helios.
  • Fixed file paths appearing for Helios Prime when crafting it in the Foundry.
  • Fixed being able to equip Deconstructor on a Sentinel that is not Helios.

Hotfix 19.11.5

  • Fixed a bug where non-Helios Sentinels could equip the Deconstructor when randomizing their loadout.

Update 19.4.2

  • Fixed missing note on the Open Slot requirement for Helios in the Arsenal.

Hotfix 19.0.2

  • Reduced the damage of Helios' Deconstructor in The War Within quest.

Update 18.14

  • Fixed Helios' Detect Vulnerability at max rank (now 2.75x damage at rank 5 instead of 2.5x).

Update 18.9

  • Fixed Helios' Deconstructor not continuously firing.

Update 18.0

  • Helios can now use Synthesis Scanners if there are no Codex Scanners equipped or remaining in the player's Gear.

Hotfix 17.0.3

  • Fixed Helios being able to scan Oddities.

Hotfix 17.0.2

  • Fixed Helios being able to scan Oddities.

Hotfix 16.5.6

  • Fixed Helios not attacking enemies when equipped with the Deconstructor.

Hotfix 16.3.1

  • Fixed Helios' Simaris skin using the wrong energy color.

Hotfix 16.1.3

  • Fixed an issue where reviving would cause Helios to scan targets with complete Codex entries.

Update 16.0

  • Helios: Detect Vulnerability - Upon completing research on an enemy subsequent scans will reveal their weak points. This ability works similar to Banshee`s sonar.
  • Fixed an issue where if Helios restarts his scan, players would lose all Codex information gained in the Mission so far.
  • Fixed the energy color of Helios not applying to his center ?eye? until you back out of Appearance in the Arsenal.
  • Fixed issue with Helios caused by viewing another players profile then entering a Mission, causing Helios to count scans from other players completed Codex.

Hotfix 15.5.1

  • Fixed issue with Helios not scanning properly.

Update 15.0

  • Fixed Helios refusing to scan decorations while there were scannable objects out of sight.
  • Changed Helios to reduce time between scans (often over 3 seconds was wasted).
  • Simplified Helios' scan logic to avoid a bunch of heavy-lifting that is already done by native code.

Update 14.5

  • Fixed Helios endlessly rescanning things not in the Codex. Specific examples: void turrets, arc traps, Grineer laser sensors above doors, smashable grates & fans.

Update 13.6

  • Improved the performance of the Helios' Scanner ability.
  • Improved Helios target detection and tracking so as to allow Helios to detect and begin scanning enemies outside of the standard field of view. Helios will now also turn towards the target that is being scanned.
  • Helios will now prefer to scan enemies over environmental objects if both type of targets are available.

Hotfix 13.4.1

  • Fixed an issue with Helios' incorrectly scanning objects outside of the players aim as well as objects whose Codex entry is already complete. Helios fix, Codex entries for crates will follow.

Update 13.3

  • Fixed Helios' Investigator Precept not properly displaying/calculating its max rank and perpetually behaving like a rank 0 mod. It will also receive a target lock so it doesn't Get distracted during scans so easily.

Update 13.2

  • Fixed an issue with Helios scanning objects that have already been fully scanned.

Update 12.6

  • (Unranked attack precepts will have half the range listed above).
    Helios is special at does not increase with rank (it is always 10m) however ranking up the Targeting Receptor precept increase the number of active glaives it can manage.
  • Fixed the damage type on the Deconstructor (Helios) Sentinel weapon so as to allow Melee mods to properly affect its stats

Hotfix 12.5.1

  • Fixed potential issues with Helios not having high resolution textures.

Update 12.5

  • New Sentinel! Meet Helios, a Corpus Sentinel with a devastating Glaive-esque attack and the ability to assist you with Codex scans!
    Visit the Market or Corpus Research Room in the Dojo today!

See alsoEdit