12:06

System Test 29 (Alertek 8005 Finale... and Bells)

10:25

System Test 26.1

25:57

System Test 29

22:58

Basement Fire System Test 35 | EST Genesis Horn/Strobes

21:22

System Test 28: AC Devices!

22:46

Fire alarm testing at a 1990s elementary school lots of bells and strobes

10:02

System Test 21: SpectrAlerts

8:24

Fire Alarm Sounds Heard on 9/11 | Wheelock & Fire-Lite System Test 24