Leaky gas pipes not only lead to higher gas consumption, but can also trigger explosions and fires in the worst case scenario. Because leaks are often difficult to detect with the naked eye (for example with really small hairline cracks), gas measuring technology is useful when it comes to checking gas pipes. Gas detector for several gas types with alarm function With Testo's gas detector, you have an instrument which you can use to detect methane, propane and hydrogen gases.The gas concentrations are measured in the ppm range with a semiconductor sensor and are shown on the display with a resolution of 1 ppm. You can rely on the alarm function when you are working: on approaching the lower explosive limit the gas detector emits an acoustic signal. As soon as the explosive limit is reached, you hear a continuous tone and are also informed via the visual display.The possibility of using a flexible probe extension means gas pipes in inaccessible areas can also be checked quickly and easily using the gas detector.