Federal signal AR timer in the titan missile silo museum control room

[FirealarmsNsirens (Curtis)]

And this AR timer controls the thunderbolt 1003 outside of the hatch

Titan II Missile Silo - Federal Thunderbolt 1003 Siren

[MrFireAlarm]

I’ve actually been there before, its Super neat!
(Its actually the only ThunderBolt left in Pima County)

Looks like a AF Timer because it’s a 1003, and it looks like it has the red button.