What happens when a firefighter becomes motionless while using a PASS device?

When a firefighter becomes motionless while using a Personal Alert Safety System (PASS) device, the device triggers a loud signal. This feature is crucial for ensuring the safety of firefighters, as it creates an audible alarm to alert nearby personnel that a firefighter may be in trouble or incapacitated. The loud signal serves as a vital tool for increasing situational awareness and facilitating a quicker response from fellow firefighters, who can assist or initiate rescue operations.

The operation of the PASS device is designed specifically to activate after a preset period of inactivity. This is particularly important in emergency situations where seconds can make a significant difference between life and death. The loud alarm created by the PASS device is a clear indicator that a firefighter could be in a hazardous situation, prompting immediate action from their team.