First of all, if the previous homeowner had ADT, expect to be physically bombarded by a sales rep. The moment you move in. The guy was so pushy and insisted on "doing a walk through" even though my sister told him numerous times no (my husband and I were out at the moment and my sister was helping us move). She was the only one there and didn't feel comfortable letting someone waltz around the house. He came back as we were continuing to move stuff in and through our exhaustion of the day somehow convinced us into thinking it would be a good idea to sign up for a 3 YEAR CONTRACT. Second of all, if something malfunctions, or is not working, just expect them to tell you to fix it yourself, or else they can send someone out to help for a significant fee. Our camera stopped working months ago and our motion detection malfunctioned so I'm not even sure why we pay a monthly fee when nothing works. Do yourself a favor and steer clear of ADT. So much for feeling "protected".