At what pressure does the SCBA activate both visible and audible alerts to indicate proper functioning?

The SCBA activates both visible and audible alerts at a pressure of 200 psi. This functionality is designed to ensure that users are aware of the device’s operational status and can confirm that the system is functioning correctly during critical situations. At this pressure level, the alerts help maintain safety by signaling that the SCBA is sufficiently charged and ready for use, enabling the wearer to focus on their tasks without worrying about equipment performance. The alerts will typically activate if the pressure drops below this threshold, ensuring that any potential issues are communicated to the user promptly.