System Sensor 2151 This smoke detector is fairly rare. Brand System SensorModel 2151Manufacturer System SensorType Smoke Detector (Photoelectric, 4-wire)
System Sensor SP2R2475 Category : System SensorThis speaker/strobe was around at the same time as the SpectrAlert Classic series.
Faraday 6120 Category : FaradayThe model number on this strobe is actually 5512. This is essentially a Simplex 2901-9838 with a strobe.
Gentex SHG-24-15/75CR Category : GentexThis is a very interesting SHG. The “Fire” label on this alarm is actually a plate that was glued onto...
