This document describes a GSM burglar alarm security system that uses GSM technology and a microcontroller to provide protection and reliability. It can be installed in homes, offices, shops, and other locations. The system monitors up to 8 zones, automatically dials 5 phone numbers to send SMS alerts when a breach occurs, and allows remote control and configuration via SMS. It has features like arm/disarm modes, an emergency panic button, and backup battery power. The easy to install system provides automatic SMS notifications to users wherever they are.