Authors - Zubayer Bin Ahamed, Umair Hossain, Umara Binte Masud, Abdullah Al Mamun, Md. Rohan Islam, Sadah Anjum Shanto Abstract - Gas leaks pose a threat to safety because they can cause fires and damage to property, and they are sometimes fatal. Traditional detection methods are manually dependent or delayed in response, which means they are not always reliable and timely. This paper presents Safe- Gas system for gas leak detection, monitoring and automatic shut-off. The system uses low-cost gas sensor, flame sensors, load cell and an ESP32 microcontroller for local processing. The system is connected to the cloud via Firebase to send alerts, and it has a battery backup to keep it running when the internet or power goes off. The app supports both remote and autonomous valve shutoff. SafeGas is a name that stands for resilience and accuracy. The designers and developers of the device have tested it in the laboratory and in the field to ensure it meets the set standards. First, the system aims to reduce the number of false alarms. Second, it can operate without an internet connection. Third, it can take safety measures independently. The embedded system and cloud integration aspects of the project demonstrate how they can be combined to achieve the desired results.
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