... wireless zone,8wire zone -CE/ROHS passed -Security alarms Touchpad LCD GSM and PSTN dual network Alarm System (LS-GSM-109 ... ) LS-GSM-109 Alarms Features: 1. Touch keypad; Big LCD displays2. GSM+PSTN dual network. If PSTN is disable, it ... History4. 30 wireless zones + 8 wired zones, every zone attribute, name, bypass, alarm delay, intelligent door sensor function, beep indication could ...