... LCD display security alarm system 1.blue color LCD display 2.support many language 3.5 ways arm/diarm GSM/PSTN LCD display security alarm system ... PSTN dual network alarm panel,2.LCD display touch keypad alarm3.wireless/wired home security alarm panel, 29 wireless zone, 8 ... arm/disarm: SMS, remote controller, built-in keypad, wireless keypad (optional device), phone call. Specification: Power Supply ...