Siemens HFP-11 Category : Siemens The protective layer over the vents on the side of the detector is made out of a really thick fabric. It’s kind of weird. Brand SiemensModel HFP-11Manufacturer SiemensType Detector
Gentex GEC24-15/75PWW Category : GentexThis Commander 2 could be used for a purpose other than fire protection due to its missing “Fire” labels.
System Sensor SP2R2475 Category : System SensorThis speaker/strobe was around at the same time as the SpectrAlert Classic series.
