Preventive action is critical once a leak is identified. Turning off the gas supply before or alongside triggering an alert system minimizes further leakage and significantly reduces the risk of fire or explosion. Detection systems may then activate alarms through multiple channels, including audio alerts, visual indicators, or mobile notifications, ensuring that people are informed promptly. The use of Arduino Uno R3 further enhances system reliability, as it processes sensor data autonomously and activates appropriate responses without requiring manual input. This enables the system to sound alarms, enforce safety protocols, or shut off the gas supply, providing a dependable solution for enhancing safety, particularly in kitchens.

The main objective of this study is to design and demonstrate a sensor-based gas leakage detection system capable of locating LPG leaks under varying environmental conditions. The proposed system aims to detect, signal, and control gas leaks efficiently while providing users with timely alerts. At the core of this design is a sensor that can quickly and accurately identify gas leaks, thereby helping prevent accidents and safeguarding lives and property.