I only own 2 of these videos. They are the 2 Whelen WPS4004s

Credit to these users
@brokensolarpanel2649
@friedmanirit
@Creeperfan12
@TrainsAndSirens1
@SWMOWoodsman
@4J25
@WarningSirensOfMichiana
@ElevatorDog100

Timestamps:
Thunderbolt 1000T alert: 0:21
Whelen WPS 4004 fastwail: 1:28
Federal Signal 2001 SRNB alert: 2:45
Federal Signal 2T22 alert: 3:49
Thunderbolt 1000AT alert: 4:43
Whelen WS2000R alert: 5:45
Federal Signal Modulator 5020B HiLo: 6:32
ACA Cyclone 120 alert: 7:07
Sentry 16V1TB wail: 8:16
Thunderbolt 1000 alert: 9:15
Whelen WS3000 wail: 10:09
Whelen WPS 4004 alert: 11:06
Thunderbolt 1003 alert: 11:37
EOWS 612 alert and wailing w/commentary by the owner: 12:39
ACA Quadron alert: 15:15
Thunderbolt 1003 wail: 16:23
Thunderbolt 1000 alert: 17:11
Thunderbolt 1000T alert: 18:09
Thunderbolt 1000A alert: 19:21
Thunderbolt 1000T alert: 20:14
Loudoun ES1000 alert: 21:18
HOR SiroDrone alert: 21:51
Whelen WPS 3016 fastwail: 22:43
Sentry Defender alert: 23:42
ASC IForce alert and wailing: 24:37