System Sensor SP1W2475ADA - FireAlarms.tv - jjinc24/U8oL0's Fire Alarm Collection

Category : Simplex

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

Category : Wheelock

Depending on which set of inputs has power applied to it, the alarm will produce a different tone.

Category : Notifier

Kind of a cool variant of the other Notifier BG-1’s that I have.