Simplex 2901-9806 Strobes such as the ADT B3409-024 were designed to be used with this horn. Brand SimplexModel 2901-9806Manufacturer Federal SignalType Alarm (Horn)
Gentex GX91-W Category : GentexThis alarm is the “updated” version of the Gentex GX90 (Simplex GX90-4R) series.
EST 270-GAO Category : EST/EdwardsThis pull is the newer version of the two-stage 270-SPO. The same key which is used with the Simplex 2098-9806...
Wheelock ET-1080 Category : WheelockThe white and red versions of this speaker both have the same model number.