Notifier N-ANN-80

This device is part of a permanent mini system installed in my house.

Also in the collection
GE 521BXT

GE 521BXT

Category :
I think that this smoke detector might be intended for use in security systems.
Simplex 477-669

Simplex 477-669

Category :
Oddly enough, the model number on this particular smoke doesn’t fit the typical pattern for Simplex devices.
@