System Sensor PC241575W - FireAlarms.tv - jjinc24/U8oL0's Fire Alarm Collection

Category : Faraday

This bell is pretty a pretty straightforward 24 VDC bell.

Category : Autocall

This is the “Local Alarm” variant of the 4050 pull.

Category : System Sensor

This alarm just looks like a slightly smaller version of the SpectrAlert Classic speaker/strobe.