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.

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.