You may use iSocket together with a motion detector or door opening sensor. You only need to connect these sensors to the input of iSocket with a special connector (3.5mm phone jack). We offer different sensor KITs that are easy to use with iSocket. These sets have all you need for a quick and easy connection, and include a cable and connector. Usually we offer 50% discount when you buy sensor kits together with the main unit. Check our current offers for sensors on this page.