Simplex 2098-9209 This is a photoelectric smoke detector. Brand SimplexModel 2098-9209Manufacturer HochikiType Smoke Detector
EST SIGA-278 Category : EST/EdwardsThis unit is rusting ever so slightly. It features a newer EST logo on it.
Edwards 281B Category : EST/EdwardsThis unit is in a bit better condition than my other Edwards 281B.