[Detect a variety of decomposable gases] Detect a large number of combustible gases, such as methane, natural gas, propane, butane, coal gas, gasoline, gasoline, toluene, water vapor, alcohol, ketones, carbon monoxide, etc. It can be used by homeowners,professionals or real estate agents to detect 50 to 10,000 units of gas per million. [High Sensitivity and Fast Response] There are two sensitivity settings, instead of quick response within 5 seconds like other handheld detectors. High sensitivity and low sensitivity can switch between different scenes. Allows users to quickly and easilydetect gas leaks in most hard-to-reach places around the equipment. [Audible and visual alarm] The 85dB tone continues to sound the alarm, and the LCD light turns red when a gas leak is detected. There is a digital backlit LCD screen, which visually displays the gas level, which is easy to read in the dark. Use batteryoperation and low battery indicator (2 AAA batteries not included). Power saving mode