Simplex 4904-9103 This is the ceiling-mount version of the Simplex 4904-9101 remote strobe. Brand SimplexModel 4904-9103Manufacturer SimplexType Alarm (Remote Strobe)
Amseco BZ-54VT+RSD-24L Category : AmsecoThat rubber band is holding the strobe to the unit since there are no screws keeping it secure.
System Sensor PA400B+PS24LO Category : System SensorThe horn’s model is PA400B, the strobe’s model is PS24LO.