... -way intercom (built-in speaker) 2,7wired and 99 wireless defense zones 3.LED display New ... SOS, fire, gas, door, hall, window, balcony, and perimeter places alarm;13.Real-time, delay, 24 hours, ... wireless accessories;15.Remote control Arm, Disarm, Monitor, and Intercom by phone;16.Built-in AAA NI- ... power off;17.Comply with CCC safety standard and GB12663-2001 national standard.Alarm Panel front ...