When gas leakage is detected, the fuel leakage alarm sends a direct alert upon detection of leakage via the MQ135 sensor. The MQ135 Gas Sensor constantly monitors the environment throughout the gas cylinder in case of leakage. In case of a leak, the sensor sends a signal to NodeMCU, which https://heads-up-display-helmet22233.webbuzzfeed.com/40071842/an-unbiased-view-of-lpg-inventory-management-system