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Automatic activation at critical air supply threshold
High-decibel warning signal
Direct MSA regulator integration
Mechanical fail-safe design
Specifications
Weight (LB)1
MPN454-85078
Weight (LB)1
MPN454-85078
Product Snapshot
The MSA Audi-Larm™ Low Pressure Warning Device is an audible alarm system that alerts SCBA users when their air supply reaches a critical low-pressure threshold. Designed for firefighters, confined space workers, and emergency responders, this device provides an unmistakable warning signal to ensure safe egress before air runs out.
The Audi-Larm attaches directly to MSA self-contained breathing apparatus regulators and activates automatically when cylinder pressure drops to a predetermined level—typically 25% of capacity. The loud, distinctive alarm cuts through ambient noise on emergency scenes and industrial jobsites, giving users time to exit hazardous atmospheres or switch to a reserve air supply. Built to MSA's exacting standards, the device operates reliably in extreme temperatures and harsh conditions where respiratory protection is critical.
Key Features
Automatic Activation — Triggers at low-pressure threshold without manual intervention
MSA SCBA Integration — Designed for direct compatibility with MSA breathing apparatus systems
Fail-Safe Operation — Mechanical design ensures function even in extreme conditions
Lightweight Construction — Adds minimal weight to existing SCBA configuration
Applications
Essential for firefighting operations, hazmat response, confined space entry, and industrial respiratory protection programs where SCBA air supply monitoring is mandatory. Used by fire departments, emergency response teams, plant safety personnel, and contractors working in IDLH (Immediately Dangerous to Life or Health) atmospheres.
