A gas leak detector is a device designed to identify the presence of harmful gases in the air, such as natural gas or propane. These detectors work by sensing specific gas concentrations and triggering an alarm when levels exceed safe thresholds. They are commonly used in homes, businesses, and industrial settings to prevent potential hazards. Most gas leak detectors are easy to install and operate, often featuring visual and audible alerts. Some models can connect to smart home systems, allowing for remote monitoring. Regular maintenance and testing are essential to ensure their effectiveness in detecting leaks promptly.