... 4: Voice prompt Model No.: L&L-819B Description: LCD Display GSM Alarm System for Home Security The GSM wireless SMS ... Call and 99 wireless defense zones; 2. LCD screen with time clock display; 3. 3 groups of timely arm and disarm; 4 ... ,Fire,Gas,Door,Hall,Window,Ballcony and Perimeter places Alarm13. Real-time,24 hours,bypass defend zones programming funcation14. SMS Alert for ...