System Sensor SR Category : System Sensor This unit is exactly the same as my other System Sensor SR. Brand System SensorModel SRManufacturer System SensorType Alarm (Remote Strobe)
Space Age AV32 Category : Space Age ElectronicsI have no idea why there is no fire lettering on this unit
ADT ADT-PS Category : ADTPersonally, I think that the ADT logo on the head of this smoke is a bit ugly.
Simplex 4904-9053 Category : SimplexI accidentally bought this particular unit not realizing I already had one. Oh well, happens.