When does the vibe-alert stop vibrating?

The vibe-alert system is designed to provide a clear and effective warning to the user about the air supply in the SCBA. It stops vibrating when there is less than 1/3 of the bottle remaining or when the pressure drops to 1500 PSI. This feature is important because it helps ensure that the user is aware of their remaining air supply and can make informed decisions about exit timing and safety.

The threshold of 1500 PSI is generally accepted as a critical point, as it indicates that the pressure is low enough that the user should consider leaving the hazardous environment. By stopping at this level, the vibe-alert serves as an effective reminder for the wearer to prioritize their safety and begin preparing for exit. This warning system is crucial during emergency situations where awareness of air supply can directly impact survival.