The project aims in designing a system which is capable of detecting the gas leakage and automatically sends alert messages to predefined numbers. Nowadays every system is automated in order to face new challenges. In the present day, Automated systems have less manual operations, flexibility, reliability and accuracy. Due to this demand every field prefers automated control systems. Especially in the field of electronics automated systems are giving good performance. The main aim of this project is to monitor the gas leakage in Industry or Home and if it exceeds, it alerts through the SMS message to mobile phone for the owner and also respective authorities using GSM modem.