Faraday 5508 Category : Faraday The bump on the front of this strobe is a magnifier. Brand FaradayModel 5508Manufacturer FaradayType Alarm (Strobe)
Simplex 4904-9137 Category : SimplexThis is, in fact, a Simplex 4904-9137. It’s just missing its housing.
GE 521BXT Category : GEI think that this smoke detector might be intended for use in security systems.
