What does three sharp audible chirps indicate when using the Pak-Alert?

Three sharp audible chirps from the Pak-Alert indicate that the PASS (Personal Alert Safety System) is in automatic mode. This mode is crucial for safety, as it allows the system to monitor the user's movement and activity. When the device detects a lack of movement for a specified period, it automatically activates to alert surrounding personnel that the user may be in distress.

Understanding this function is vital for ensuring that responders are aware of any potential emergencies during operations where SCBA is being used. In contrast, standby mode typically does not issue such alerts, and low-air cylinder alerts would signify the need for cylinder replacement, while assistance alerts would indicate the user has activated their distress signal due to an emergency.