FARR-LARM Model 3300
A unique device, I have never ever seen in the wild. I am presuming this is an alternative to sprinkler bells. No manufacturer anywhere on it, new in box. But this is just a 120V Wheelock horn on a metal weatherproof backbox, with a standard light socket out the bottom, and a Eagle Flasher button in the bottom of the socket. The red piece is just a plastic shroud that attaches to the front of the backbox.