Simplex 4903-9217 Category : Simplex This rectangular Simplex notification appliances has an electromechanical horn mechanism, rather than an electronic horn mechanism or a speaker. Brand SimplexModel 4903-9217Manufacturer SimplexType Alarm (Horn/Strobe, 4-wire)
Amseco MSB-8B-P2 Category : AmsecoI am not sure if this bell was specifically meant for fire protection or not.
Notifier SLG-24F Category : NotifierAnother rare Notifier rebranding of a product typically not associated with Notifier.
