Do you mind sharing more with me about your setup? I've been researching options, including diy, but don't want/need all the bells and whistles espoused by the "easy"corporations.
It's a system made by Smanos, not diy, and has a central unit with battery backup, rfid tags and remote control. There are a bunch of sensors, standard stuff. The part that attracted me was the simplicity of using only text messages to control it and receive notifications.