回視聴
0:05
Pulling a fire alarm (sound warning)
0:14
What do smoke alarms sound like?
0:12
Smoke Detector Chirp
12:00:38
12 HOURS of Relaxing Fireplace Sounds - Burning Fireplace & Crackling Fire Sounds (NO MUSIC)
1:25
Pre-Action Fire Protection System: Elevator Technical Room
0:15
Smoke Detector Test | Fire Alarm | Smoke Management System
0:20
Fire alarm drill with manual call point
10:00:06
Ten hours of silence occasionally broken by smoke alarm chirp
