* Supports both GSM and PSTN networks.
* Quad Band: 850/900/1800/1900MHz
* 2 sections voice record (every one max1 minutes )
* 20 alarm memory number, 1-10 SMS number and 11-20 dialingnumber.
* 4 operation trigger Input + /-
* 4 controllable outputs by SMS or keypad
* Friendly LCD display operation
* Remote monitoring site and talking via phone
* Arm and disarm the alarm system by SMS and keypad
* Free charges, the call from authorized number control Output 4 turn ON/OFF