Fire alarm testing at a 1990s elementary school lots of bells and strobes
8:11
Fire alarm drill at elementary school. Lots of bells and strobes no sync.
14:01
1970s large middle school fire drill EST/Edwards system bells and strobes
34:43
Fire alarm testing at a elementary school tons of bells and strobes
21:44
Fire alarm testing a school from 1958
30:16
Testing fire alarm system in a big 1970s middle school
23:25
Fire Alarm Compilation
24:35
Elementary school fire alarm testing
22:29