KI-PG60W 850/900/1850/1900 MHz Most Advanced Wireless Gsm Sms Smart Ios Android App Home Security Alarm System No Contracts No Fees Auto Dialer Diy LCD display with 100 log history storage capability Quad band GSM signal 850/900/1850/1900 MHz Alarm Notification via sms, text, app android/iphone, phone call & ademco id Hybrid 120 zones, up to 120 wireless sensors & up to 4 hardwired zones Highly advanced zone attributes, assign 5 different per sensor.