Simplex 4903-9102 Unlike the Simplex 4903-9101, this is a light plate rather than a strobe. Brand SimplexModel 4903-9102Manufacturer SimplexType Alarm (Light)
Honeywell HFS-P Category : HoneywellOddly enough, the model number on this particular smoke doesn’t fit the typical pattern for Honeywell devices.
Notifier SLG-24F Category : NotifierAnother rare Notifier rebranding of a product typically not associated with Notifier.