Alarm systems are best known for their ability to alert homeowners of the presence of burglars, to make sound which is meant to let the burglars know they have been caught, and to automatically alert authorities to the intrusion, so that help can be sent immediately without the homeowner needing to call. Beyond this though, there are other types of alarm systems that can be used in a home, and there are many other reasons why a person may wish to use an alarm system.