... 8 wireless alarm zone two-way intercom LCD scree GSM Home Alarm Security Wireless System Functions8 wireless Defence zones,each zone can ... a telephone;SOS, fire, gas, door, hall, window, balcony, and perimeter places alarm;Real-time, delay, 24 hours, bypass Defence ... add additional wireless accessories;Remote control Arm, Disarm, Monitor, and Intercom by phone;Event record check: the unit will record ...