Gas leakage has been a significant issue in industrial sectors, residential areas, and other locations. To prevent accidents related to gas leaks, one effective measure is to install a gas leakage detection system in susceptible areas. This paper aims to present a design for an automated gas leakage detection system that not only detects and alerts users of gas leaks but also includes a warning mechanism. The system employs a gas sensor capable of promptly identifying gas leaks and sends SMS notifications to users. Additionally, it continuously monitors gas levels, providing audio and visual alerts. The proposed design incorporates both software and hardware elements, resulting in a highly efficient, user-friendly, portable, compact, and cost-effective system.