Ademco 5140MPS-1 I have several other brand variations of this pull station. Brand AdemcoModel 540MPS-1Manufacturer SigcomType Pull Station
Simplex 4259-25 Category : SimplexThis is a photoelectric smoke detector from the mid to late 1970’s.
Space Age AV32+2DCD Category : Space Age ElectronicsThat is an electromechanical horn on the rear of the strobe plate.
ADT ADT-PS Category : ADTPersonally, I think that the ADT logo on the head of this smoke is a bit ugly.