DETECTS MANY KINDS OF COMBUSTIBLE GASES Detects a large number of flammable gases, like methane, natural gas, propane, butane, ethane, coal gas, gas oil, gasoline, toluene, sewer gas,alcohol, ketones, carbon monoxide and more. Detect gas between 50 and 10,000 parts per million (ppm), can be used by homeowners, professionals, or real estate agents.HIGH SENSITIVE AND QUICK RESPONSEHas two sensitivity settings instead of a knob like the other handheld detectors,Quick response within 5 seconds.High and low sensitivity are switchable for different scenarios. Allow users with the ability to quickly and easily detect gas leaks in most hard-to-reach places around appliances.AUDIBLE & VISUAL ALARMAlarms continuously with 85dB tone and LCD light turn red when detecting gas leak. has a digital backlight LCD screen, visually display the gas level , easy to read in dark. Use batteries to operate and has a low-battery indicator( 2pcs AAA batteries not included). Power-save modes,auto power off after about 10 minutes if there are no operation and measurement signal.COMPACT & PORTABLEHas an easy-to-understand interface with its on/off and sensitivity button, customers can operate the device with one hand. Has rubber around the outside to make holding it easier. Pen type design,easy to carry and operate. Look for a detector that can sense even the smallest amounts of gas or else you could be unknowingly exposed to a toxic substance.WIDE APPLICATIONHold this handheld detector in the area where you think there might be a leak and wait for the device to display the current gas levels.Widely used in detecting gas leak of lawnmower, your basement, RV, factory workspace, gas stove, water heater and other household devices at home to secure safety.Safe and reliable gas leak Tester.