System Sensor S241575 This alarm is a red SpectrAlert Classic remote strobe. Brand System SensorModel S241575Manufacturer System SensorType Alarm (Strobe)
Space Age AV32+2DCD Category : Space Age ElectronicsThat is an electromechanical horn on the rear of the strobe plate.
Fike 20-1063 Category : Fiquench/FikeThis is a pretty rare addressable rebrand of the BG-12 series pulls.
EST SIGA-278 Category : EST/EdwardsThis pull station used to be addressable, but I have since removed the addressable module.