The Fortress GSM-B allows you to install a full-scale monitored alarm in your home without incurring costly monthly fees. A totally wireless system, the main console monitors the remote sensors (see below) and triggers the alarm in case of an intrusion. At the same time, it"ll send a text message or call you to notify you of a potential break-in. Enter 6 numbers to dial in case the first isn"t answered, and 3 SMS numbers. The GSM-B has both landline and GMS capabilities, allowing one as a backup. In case an intruder manages to cut your landline, the system will still function with the GSM dialer. Furthermore, the alarm will automatically sound if the landline is forcibly cut and the system is armed. Dial in to arm or disarm the system, check the status or use the built-in intercom. This allows you to talk to anyone near the main console. Includes * 1 X Main Console * 10 X Window/Door Contacts * 3 X Passive infrared motion detectors * 3 X Remote control keyfobs * 1 X Loud indoor siren * 1 X Loud outdoor siren * 1 X Panic Button