Simplex 4903-9102 Category : Simplex Unlike the Simplex 4903-9101, this is a light plate rather than a strobe. Brand SimplexModel 4903-9102Manufacturer SimplexType Alarm (Light)
Fiquench 20-051+20-047 Category : Fiquench/FikeThis alarm was clearly meant for a Halon fire suppression system. 20-051 is the model of the horn and 20-047...
GE 521BXT Category : GEI think that this smoke detector might be intended for use in security systems.
