RSG RMS-1T Category : RSG Either this is an early generation RSG T-Bar or some unique variant of the more common RSG RJRMS-1T-KL.
Notifier F67ODT Category : NotifierF67ODT likely isn’t the model number of the unit as it was just a random number stamped on the wall...
Simplex 4903-9219H Category : SimplexThis alarm is specially made for high-humidity situations such as swimming pools. That’s what the “H” in the model number...
Wheelock ET-1080-WS-24 Category : WheelockYou can’t really tell from the pictures, but the strobe is practically falling out of this particular unit.