Gamewell A8814 Category : Gamewell I have no idea what year this alarm is from, only that it’s old and heavy.
Notifier N-ANN-80 Category : NotifierThis device is part of a permanent mini system installed in my house.
Space Age A32-BL-SFXC-TJ24D-HA24D+HA24D Category : Space Age ElectronicsI’m pretty sure that the horn on this unit is made by Space Age Electronics. Otherwise, it’s probably a Wheelock...
EST 882-2B Category : EST/EdwardsThis unit has an electronic horn rather than an electromechanical mechanism.