Silent Knight SD505-APS Category : Silent Knight This smoke detector is conventional. Brand Silent KnightModel SD505-APSManufacturer Silent KnightType Smoke Detector
Notifier 34-24 Category : NotifierThis is basically just a Wheelock horn with a Notifer sticker slapped onto it.
Amseco FS1-1+SL-02 Category : AmsecoSL-02 is the model of the strobe, FS1-1 is the model of the sounder.