Simplex 4901-9811 This particular alarm is actually capable of doing three different tones. Brand SimplexModel 4901-9811Manufacturer FaradayType Alarm (Horn)
Gamewell GW-30203-01 Category : GamewellThis is a somewhat obscure Gamewell alarm condition light, most likely used with system components such as duct detectors.
Simplex 2099-9103 Category : SimplexThe terminal strip on the back of this pull is different than the one of my other Simplex 2099-9103.