40zones LCD display Intelligent Burglar Alarm System SA-O 1.MAIN FEATURES:1) Compact design, Orange backlight, big LCD Screen Display.2) Voice Instruction.3) Low power consumption, backup battery lasts for at least 72 hours.4)32 wireless defense zones, 8 wired Defense zones.5) Low Power Alarm Function.6) AC Power Failure Alarm.7) Built in siren, External Siren Optional.8) Recycling call the pre-set six groups alarm telephone numbers.9) Remote sound monitoring, arm and disarm control .10)Learning Code, can work with many accessories .11) Separately arm/disarm for each defense zone.12) Connecting with monitoring central station.13) Telephone line anti-cutting function.14) Program three groups fixed time to arm/disarm.15) 100 historical alarm time records