1.850-900-1800-1900mhz 2.16 zone wireless, 3 zone wired, 3 relay output 3.send SMS or ... the system. GSM 850/900/1800/1900 bands;8 zone wireless,6 zone wired.. It learns code automatically,1,000,000 ... the situation as well as to help the older or child at home.. Exit and enter delay.(8-88S selectable). Set ...