What pressure activates the Vibralert system?

The Vibralert system is designed to provide a tactile alert to the user of the SCBA when the residual pressure in the cylinder drops to a critical level. Specifically, this system activates when the pressure falls below a threshold that is set at 110 psi. This ensures that the firefighter is informed well before the air supply is depleted, allowing for timely action to either exit hazardous environments or switch to an alternative air supply. The threshold is crucial for maintaining safety during operations where breathable air is imperative.

Knowing that the correct pressure point is at 110 psi helps users understand the importance of being aware of their air supply and the functionality of the Vibralert system while using the equipment.