| Summary: | LPG is a common industrial and household item, which is extremely flammable. Many accidents have occurred because of LPG leaking, whose causes range from improper installation to the usage of faulty gas cylinders. Serious accidents that cause bodily harms or even fatalities can be avoided if the leakage is detected early before it initiates huge fires and causes damage to the surrounding where the LPG container is installed. This study proposes and develops an improved design of a system which detects LPG leakage, such as methane, butane, or any other petroleum-based gaseous liquid. Combining the gas leakage detection system with an IoT system shall provide mechanism to instantly contain the severity of LPG leakage and send instant alerts. In this system, an MQ-6 sensor and NodeMCU with ESP8266 WIFI module are used to detect gas presence, in which a relay will turn on to activate an exhaust fan to instantly reduce gas concentration whilst sending alert notification to user via an app. The information will then be transmitted over the internet to a database, in which the information will be accessible via an app configured specifically for the accessibility by the user. © 2022 IEEE.
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