PASS device
A pass device is a special tool that firefighters use to keep themselves safe while they are fighting fires. It is like a little alarm that they wear on their uniform.
If a firefighter gets into trouble, like if they get lost or trapped by the fire, they can hit a button on their pass device which will set off a loud noise. This noise will alert other firefighters that they need help.
The pass device also has a little motion sensor inside it. If the device doesn't detect any movement for a certain amount of time, it will automatically set off the alarm. This is really helpful if a firefighter gets knocked out or can't move because of the fire.
So basically, the pass device is like a superhero's sidekick. It helps keep the firefighter safe and lets others know if they need help.
If a firefighter gets into trouble, like if they get lost or trapped by the fire, they can hit a button on their pass device which will set off a loud noise. This noise will alert other firefighters that they need help.
The pass device also has a little motion sensor inside it. If the device doesn't detect any movement for a certain amount of time, it will automatically set off the alarm. This is really helpful if a firefighter gets knocked out or can't move because of the fire.
So basically, the pass device is like a superhero's sidekick. It helps keep the firefighter safe and lets others know if they need help.