How to Install a Horn to My Home Alarm From Monitronics

Choose a mounting location for the horn that is difficult to access or tamper with. Mount the horn in the chosen location using a Phillips screwdriver and the included screws.

Strip 1/2 inch of insulation off the ends of a two-conductor wire. Slide the stripped ends of the wire under the screw terminals on the horn. Tighten the terminal screws with a Phillips screwdriver until they are snug.

Run the two-conductor wire from the location of the horn to the alarm panel. Choose a path for the wire that is difficult to access or that runs inside the house. Fasten the wire to walls or joists using wire staples.

Run the two-conductor wire into the alarm panel box through one of the holes on the top or side of the box.

Strip 1/2 inch of insulation from the ends of the two-conductor wire. Slide the end of the conductor that is connected to the positive terminal on the horn under terminal 3 on the Monitronics alarm panel. Slide the end of the conductor that is connected to the negative terminal on the horn under terminal 4 on the Monitronics alarm panel. Tighten the terminal screws with a Phillips screwdriver until they are snug.

Notify your monitoring company and local authorities that you will be conducting tests on your Monitronics alarm system. Trigger the alarm and check the horn for proper operation. Disarm the alarm and check all connections if the horn fails to operate. Notify your monitoring company and local authorities when you finish testing the system.