This home security bundle allows for a quick and easy to set up home protection system which can be expanded. The items are wirelessly connected, excluding the sliding patio door block. Set up will take about 45 minutes. Everything needed for set up is included: batteries, connectors, wires and full instructions. The main central unit is also a telephone dialer. The dialer stores up 5 telephone numbers that will be dialed automatically upon receipt of a wireless signal from one of the 3 sensors or remote controls that will be connected. A total of 23 Ideal sensors can be learned to the dialer.The system requires electricity and a fixed land line. Telephone calls from the dialer can be made to a land line, cell or pager. Receiver of the call will hear BEEPS indicating a problem. Call display by the receiver is helpful. Ideal has bilingual customer support Monday to Friday from 7am to 3pm. The set includes 1 motion sensor and 2 door and window contacts and 3 remote controls.