... wireless defense zones 3.Wireless learning gsm alarm systemsGS-M2B GSM alarm systemFunction Instruction:1.7 wired and 99 ... gas, door, hall, window, balcony, and perimeter places alarm;13.Real-time, delay, 24 hours, bypass defense zones ... standard and GB12663-2001 national standard.Alarm Panel front schematic diagram:Alarm Panel back schematic diagram:Alarm system LCD playerWired terminal block: ...