... text Model No.: DL-GSM10A Description: 10 zones GSM security alarm system n 4 wired and 6 wireless defence zones;n Can ... 10-second automatic message recording;n Built-in intelligent English message;n Alarm locking memory and information clear for easy checking ... function: Out Arm, Home Arm, Remote Arm;n Wireless intelligent learning encoding and comply additional accessories;n Arm, disarm, monitor ...