I can pay money for a 3G service she has front door, side door,sliding door, two windows in the master bedroom and two other rooms with one window each . I was just going to put a motion sensor in each room to start and build out. She really wants ADT but I hate ADT I won't let her do it lol...How many entry points are you trying to protect? Are you willing to pay a small fee for the text messages to your phone or are you trying to get that feature without a monthly fee?