System Sensor HRA - FireAlarms.tv - jjinc24/U8oL0's Fire Alarm Collection

Category : Honeywell

This is essentially a slightly modified-looking version of the Honyewell S464A with a two-stage option.

Category : Space Age Electronics

I’m pretty sure that the horn on this unit is made by Space Age Electronics. Otherwise, it’s probably a Wheelock...

Category : Fire-Lite

Basic non-addressable, hex-lock BG-12.