Simplex 4903-9403 Category : Simplex The strobe on this alarm model isn’t directly connected to the alarm, oddly enough. Brand SimplexModel 4903-9403Manufacturer SimplexType Alarm (Horn/Strobe, 4-wire)
Edwards 7031-92 Category : EST/EdwardsThis unit probably wasn’t used as a notification appliance, but instead as an indicator for a part or function of...
Cerberus Pyrotronics MSI-20B Category : Cerberus PyrotronicsThis is the addressable version of the Pyrotronics MS-501.
Wheelock HSR Category : WheelockThis is from the Exceeder series. The only difference between this and my Wheelock HSW is the color.
