Object

Space Station Depressurization Alert System

Computer-activated klaxon system for environmental hazard warnings

3 appearances

Appearances in the Narrative

When this object appears and how it's used

3 moments

Doctor and Peri debate fleeing the corridor

A sharp klaxon erupts through the corridor as the station initiates depressurization, signaling mortal peril. Its rhythmic wail compels immediate motion and heightens the sense of time collapsing around the Doctors, while also drawing their attention to the environmental threat.

Before: Silent prior to activation by the computer’s defense protocols.

After: Continues to sound as an urgent, mechanical countdown to doom, until the Doctor finally opens the door and they escape into relative safety.

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S22E7 · The Two Doctors Part 1

Computer turns hostile on the Doctor and Peri

The environmental alert Klaxon sounds as the station initiates depressurization, signaling imminent danger. Its rhythmic wail drives urgency into the scene, pushing the pace toward escape.

Before: Silent prior to environmental control activation

After: Activated and continues until interrupted by manual intervention

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S22E7 · The Two Doctors Part 1

Doctor fights hostile station oxygen failure

The station’s environmental alert klaxon emits a sharp pulsating alarm as the computer activates defense protocols. Its rhythmic klaxon cuts through the crisis, signaling imminent depressurization seconds before doors lock and oxygen escapes, compelling immediate action.

Before: Silent under normal station operations, its emergency function dormant.

After: Ceases abruptly once the Doctor forces the door open and rescues Peri, no longer required.

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