EST 757S2-15PS Another duplicate device. Brand EST/EdwardsModel 757S2-15PSManufacturer ESTType Alarm (Speaker/Strobe)
Simplex 2904-9103 Category : SimplexThis unit is a light, not a strobe. I’m pretty sure that 2904-9103 is the correct model number.
Notifier SLG-24F Category : NotifierAnother rare Notifier rebranding of a product typically not associated with Notifier.
Pyrotronics ES0-24S Category : Cerberus Pyrotronics, PyrotronicsThis is a rebranded Wheelock horn/strobe, and a pretty rare one at that since it has an electronic horn mechanism...