Simplex 4901-9811 Category : Simplex This particular alarm is actually capable of doing three different tones. Brand SimplexModel 4901-9811Manufacturer FaradayType Alarm (Horn)
Gentex SPKE4-110WW Category : GentexThis alarm uses the same strobe as the SHG/GOS/GXS series of alarms.
GE/EST SIGA-278 Category : EST/Edwards, GEThe metal components on this pull are a bit rusty. It is co-branded by GE and EST.
