Simplex 4904-9101 Category : Simplex This is the same strobe that is found on the Simplex 4903-9101 strobe plates. Brand SimplexModel 4904-9101Manufacturer SimplexType Alarm (Remote Strobe)
H. R. Kirkland Indicator Category : OtherThis unit bears no model number, only the brand “H. R. Kirkland,” a company that still manufactures fire alarm system...
Simplex 4903-9417 Category : SimplexThis is a SmartSync TrueAlert which I am able to use with my Simplex 4010.
