... Arm;n SOS, fire, gas, door, hall, window, balcony, and perimeter places alarm;n Real-time, delay, 24 hours, bypass defense zones ... NI-HI rechargeable battery: make alarm when power off;n Comply with CCC safety standard and GB12663-2001 national standard.7 wired ... Arm;n SOS, fire, gas, door, hall, window, balcony, and perimeter places alarm;n Real-time, delay, 24 hours, bypass defense zones ...