... CID -Simple menu, strobe siren Touchpad LCD GSM Alarm System(LS-GSM-102) -Dual network, 1200mA battery -Support ... keypad; LCD displays Date, Week, Time, and System Status 3.2/4 Band GSM/PSTN dual net- ... hear what is happening. 13. Built-in Li-ion backup battery, it will alert when low power or ... D imension: 150*107*26(mm) Basic component: - Alarm system (control unit)-1 PC. - Wireless PIR detector-1 PC. ...