Simplex 2098-9201 Category : Simplex This is a “TrueAlarm” series detector. It is tested with a magnet. Brand SimplexModel 2098-9201Manufacturer SimplexType Smoke Detector (Photoelectric, 4-wire)
Simplex 2901-9517 Category : SimplexThis is essentially the AC-powered version of the Simplex 2901-9833.
Faraday 2700-E Category : FaradayThis strobe is almost Siemens/Cerberus Pyrotronics/Faraday’s version of the Wheelock RSS-24MCW.
