High Sensitivity Gas Leak Detector Ensure safety in your home or RV with our High Sensitivity Gas Leak Detector. This portable gas tester features a 9.4-inch probe, allowing you to easily reach and detect gas leaks from hard-to-access areas. Designed for detecting methane, propane, natural gas, and LPG, this gas detector is highly sensitive and can identify even the slightest leaks. Note: Please allow 30 seconds of warm-up time before operation. Visual and Audible Alarm Stay alerted with the built-in visual and audible alarm system. The gas tester activates an alarm within 2 seconds of detecting combustible gas, providing immediate feedback. With nine colored analog bars and a loud buzzer, you can quickly pinpoint the location of the gas leak. The detection range is between 50-10,000 ppm, and high-precision temperature and humidity sensors enhance leak detection under various conditions. User-Friendly Functions This gas leak detector is designed for convenience. You can easily activate or deactivate the Auto Power-Off function using the APO button, which helps conserve battery life by automatically shutting off after 5 minutes of inactivity. The Mute button allows you to silence the audible alarm whenever needed, eliminating any annoying noise. Additionally, a built-in torch helps you locate leaks in dark areas, and a low battery indicator alerts you when the battery voltage drops below 3.4V.