Fire-Lite BG-10LA Category : Fire-Lite The “L” in the model number stands for “Lock,” and the “A” stands for “Annunciator,” as in the extra set of annunciator contacts on the back. Brand Fire-LiteModel BG-10LAManufacturer System SensorType Pull Station
Amseco MSB-10B-PV4 Category : AmsecoThis bell is specifically meant to be used in a fire alarm system.