... intelligent alarm systemFeatures: 1. Touch keypad: Bule back-up light; LCD display date, day of the week, Time, and current Armed ... transmission, phone audible alarming and SMS alarming; 3. 15 wireless zones. Support 2 more wired zones(Optional);4. Can preset ... Learning sensors to alarm host, very easy operation;10. Support wireless "ding-dong"doorbell function(optional);11. Support CID uploading to ...