Gas sensors play a critical role in our modern world, serving as the frontline defense against hazardous gas leaks and contributing to environmental monitoring efforts. These devices detect the presence of gases either for worker safety, to control a process, or to analyze environmental quality. They operate by measuring the concentration of specific gases and alerting users when levels exceed safe thresholds.
In industrial settings, gas sensors are used to monitor potentially explosive gases like methane or toxic substances such as carbon monoxide and hydrogen sulfide. In homes, carbon monoxide detectors protect families from this silent killer, while natural gas detectors prevent explosions. For environmental applications, sensors measure pollutants such as nitrogen oxides and sulfur dioxide to ensure air quality standards are met.