The FH-400 Series Horns utilize a universal mounting plate that allows for mounting to a single gang, double gang, octagon, 4” junction or 4” square electrical box. The back plate allows the installer to mount the plate and connect the wire connections. The device attaches to the mounting plate and is secured by a single mounting screw. In addition, the FH-400 can mount to the Mircom BB-400 Series back box for surface mount applications.
