EST G4RF-S2VM This is a speaker/strobe “Genesis.” Brand EST/EdwardsModel G4RF-S2VMManufacturer ESTType Alarm (Speaker/Strobe)
Faraday 6234-E Category : FaradayI believe the “E” appendage on the end of the model number means it is a sync-strobe.
Ansul SLG-24F Category : AnsulAlthough this smoke detector doesn’t say Ansul anywhere on it, the base its base, which I did not photograph, is...
Simplex 4903-9102 Category : SimplexUnlike the Simplex 4903-9101, this is a light plate rather than a strobe.