Simplex 4903-9101 Category : Simplex This unit was new and has never been used. Brand SimplexModel 4903-9101Manufacturer UnknownType Alarm (Strobe Plate)
System Sensor PA400B+PS24LO Category : System SensorThe horn’s model is PA400B, the strobe’s model is PS24LO.
Simplex 4903-9219H Category : SimplexThis alarm is specially made for high-humidity situations such as swimming pools. That’s what the “H” in the model number...
