Which tool can be useful for detecting gas leaks?

A gas leak detector is specifically designed to identify the presence of gas in the air, making it the most effective tool for detecting gas leaks. These detectors work by either sensing gas concentrations or reacting to the chemical properties of gas, providing an audible or visual alert when gas levels exceed safe thresholds.

While water spray can sometimes be used in a rudimentary way to detect leaks—by forming bubbles where gas escapes—it is not as reliable or efficient as a dedicated gas leak detector. A thermometer measures temperature and doesn't provide information regarding gas presence. Similarly, a pressure gauge monitors the pressure within a system but does not indicate whether gas is leaking. Therefore, the gas leak detector is essential for ensuring safety by proactively identifying hazardous conditions.