Simplex 2098-9201 This is a “TrueAlarm” series detector. It is tested with a magnet. Brand SimplexModel 2098-9201Manufacturer SimplexType Smoke Detector (Photoelectric, 4-wire)
Simplex 2099-9103 Category : SimplexThe terminal strip on the back of this pull is different than the one of my other Simplex 2099-9103.
Silent Knight PS-DATK Category : Silent KnightExactly the same as the Silent Knight PS-SATK, but just with the dual-action feature.