If you are in Dallas area and thus checking for different providers offering services of Home security and alarm monitoring in Dallas, then you will find that, A home video surveillance system is a system that uses cameras to monitor what is happening in and around your home. The video may concern public areas, commercial premises, or property of an individual. It can have various purposes but generally aims to thwart damage and invasions into a place. The surveillance can also be used in addition to security or an alarm system.