System Sensor MA/SS-24D - FireAlarms.tv - jjinc24/U8oL0's Fire Alarm Collection

Category : Simplex

This is essentially the AC-powered version of the Simplex 2901-9833.

Category : Amseco

I like the grille, or in other words, have nothing special to say about this particular unit.

Category : Wheelock

I’m missing this unit’s label, so that model number is only a guess. It’s probably right though.