Home automation systems are essentially a network of devices and just like computer networks; you can have more than one network. Although most homes tie all home automation devices to a single home network, an additional option is to create a second network that is common throughout the whole neighborhood. This option allows you to add exterior devices such as door and window sensors to the common network so they can be monitored by anyone else who is on your common network. By creating a second network for the neighborhood watch, you maintain privacy and independence on your home network, separate from your neighbors.