Loudest and Craziest System Test Ever! (System Test 28)
12:06
System Test 29 (Alertek 8005 Finale... and Bells)
10:25
System Test 26.1
18:13
FBII StarFone - 80s tech, it talks, and you can control it with your phone
22:58
Basement Fire System Test 35 | EST Genesis Horn/Strobes
14:04
BRAND NEW System test 1
22:46
Fire alarm testing at a 1990s elementary school lots of bells and strobes
21:22
System Test 28: AC Devices!
10:52