Typically, a basic home surveillance system will make use of a series of devices that are affixed to all doors and windows. And just like a videocassette recorder player, when activated, these devices are capable of detecting any efforts to gain entry to the building. With some designs, the devices sound alarms that are loud enough to alert the homeowner or any other members of the household that an intruder is present. With these system, they can notify the home owner if there is any danger within the premises of his residence.
There were more sophisticated designs go one step beyond sounding alarms when someone breaks into the home. A number of home surveillance system designs can be integrated with other electronic equipment in the home, such as a home computer network. And basically, they were all made for the sole purpose of giving security and safety in your home.