Gas Sensors are utilized as the electronic devices which can identify dissimilar types of gasses. These detectors are used to detect explosive & toxic gasses. They are also used to measure the gas concentration. They are commonly applicable for developing an IoT-powered system and ensure the identification and variation of toxic gases in the industrial facility. Gas sensors are beneficial for factories as well as refineries and are superbly safe against the unanticipated threats like explosions. They can also sense the concentration of the gases existing in the so as to evade the hazardous outcomes such as fire breakouts. These imperative solutions can keep the equipment as well as plant workers safe from several types of fire hazards.