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Combine Door Lock

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Combine era
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Combine Door Lock
General information
Affiliation

Combine

Type

Door lock

Game information
Entity

N/A

The Combine Door Lock is a small, metallic device that is placed on a door instead of a door handle, and acts to keep the door locked in order to prevent unauthorized access. Locks are most commonly found in the residential apartments throughout City 17. This could possibly be because the Combine, in its oppressive nature, chooses when the citizens are allowed to enter or leave their apartments, and monitor everyone that walks in and out. It is evident that only Combine personnel may operate a lock, but Alyx can use her EMP Tool to override Combine locks in order to gain access to restricted areas, as she does in Nova Prospekt.

In Half-Life 2: Episode One, the door locks demonstrated the ability to self destruct, flashing red and emitting a beeping noise, then exploding, destroying the door they were attached to. This seems to have been used by Overwatch to forcefully enter buildings.

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Technology, equipment, items and props
Aperture Science 1500 Megawatt Heavy Duty Super-Colliding Super Button · Advanced Knee Replacement · Borealis · Emergency Intelligence Incinerator · GLaDOS · High Energy Pellet · Material Emancipation Grid · Military Android · Security Camera · Speaker System · Teleportation · Unstationary Scaffold · Vital Apparatus Vent · Weighted Storage Cube · Weapons
Black Mesa Anti-Mass Spectrometer · Battery · Black Mesa Announcement System · Black Mesa rocket · Charger · Delivery Cart · HEV Suit · Holographic Assistant · Long Jump Module · Medkit · MTM 8 · Retinal Scanner · Teleportation · Vehicles · Weapon Box · Weapons
Combine Battery · Breencast · Charger · Citadel Core · Citadel · Barricade · Binoculars · Bunker · Camera · Cell · Confiscation Field · Dispenser · Door Lock · Elevator · Emitter · Interface · Dark Energy · Depot · Dr. Breen's Private Reserve · Energy Orb · Field Bridge · Force Field · Heavy Door · Light · Medkit · Memory Replacement · Monitor · Overwatch Voice · Power Generator · Restrictor · Security Door · Smart Barrier · Supply Crate · Suppression Field · Teleportation · Television · Vehicles · Watchtower · Weapons
Resistance Communication · Antlion Detector · Dog · EMP Tool · Generator Trailer · Lever Bridge · Retinal Scanner · Supply Crate · Teleportation · Television · Transponder · Vehicles · Weapons · White Forest rocket
Other Cloaking Device · Garden Gnome · Powered Combat Vest
Black Mesa (cut) Emergency Flare · Oxygen Bottles · Powerup Bottles · Security Card
Combine (cut) Binoculars · Combine Big Momma Pod · Combine Assassin Tank · Door Tower · Heel Springs · Sensor Gate · Vorti-Cell
The Combine
Leaders / key figures Advisors · 314 URB-LOC 0017 Advisor · Barn Advisor · Wallace Breen
Minor members Barney Calhoun
Humanoid units Civil Protection · Overwatch Soldier · Overwatch Sniper · Overwatch Elite · Stalker
Synth units Synth · Advisor Pod · Crab Synth · Combine Dropship · Combine Gunship · Hunter · Mortar Synth · Shield Scanner · Strider
Mechanical units City Scanner
Weapons Autogun · Headcrab Shell · Hopper Mine · Hunter-Chopper Bomb · Manhack · MK3A2 Grenade · MP7 · Overwatch Sniper Rifle · Overwatch Standard Issue Pulse Rifle · Rollermine · Sentry Turret · SPAS-12 · Stun Baton · Suppression Device · USP Match
Vehicles Advisor Platform · Armored Personnel Carrier · Hunter-Chopper · Razor Train
Technology Battery · Breencast · Charger · Citadel Core · Citadel · Barricade · Binoculars · Bunker · Camera · Cell · Confiscation Field · Dispenser · Door Lock · Elevator · Emitter · Interface · Dark Energy · Depot · Dr. Breen's Private Reserve · Energy Orb · Field Bridge · Force Field · Heavy Door · Light · Medkit · Memory Replacement · Monitor · Overwatch Voice · Power Generator · Restrictor · Security Door · Smart Barrier · Supply Crate · Suppression Field · Teleportation · Television · Vehicles · Watchtower
Locations Citadel · Citadel Core · City 14 · City 17 · City 17 Trainstation · Combine Overworld · Depot · Nova Prospekt · Technical Trainstation
Other Anticitizen · Citizen · Overwatch
Leaders / key figures (cut) The Consul · Vance
Minor members (cut) Animal · Mambridge · Peters
Humanoid units (cut) Alien Assassin · Alien Combine Soldier · Combine Assassin · Conscripts · Cremator
Synth units (cut) Combine Guard · Combine Super Soldier · Combine Synth Elite Soldier · Sacktick · Unidentified Synth · Wasteland Scanner
Weapons (cut) Combine Guard Gun · Combine Launcher · Desert Launcher · FIM-92 Stinger · GR9 · HK-707 · Hopwire Grenade · Immolator · Incendiary Rifle · Laser Tripmine · MP5K · MP7 · Sniper Rifle · XM29 OICW
Vehicles (cut) AirEx Truck · Combine SWAT Truck · M2A3 Bradley · Merkava · School Bus
Technology (cut) Binoculars · Combine Big Momma Pod · Combine Assassin Tank · Door Tower · Heel Springs · Sensor Gate · Vorti-Cell
Locations (cut) Air Exchange · City 40 · City 49 · Combine Factories · Manhack Arcade · Skyscraper · Vance Headquarters · Weather Control