Mircom’s FH-400 Horns offer an audible solution that deliver exceptional energy efficiency in a compact design. The FH-400 Series Horns provide a wide range of audible settings in a single compact device. The audible settings include Temporal, Continuous, March Time and 20 BPM tones that can each be set for Low or High volume settings.The device settings are located on the back of the unit to prevent tampering. 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.