Combustible Gas Detector and Pressure Kit, Calibration Certificate Type Available Separately, Features 18 in Gooseneck, Headphone Jack, Low Battery Indicator, Protective Boot, Rubber Boot with Integral Magnet, Sensor Cover, Two-Button Operation, Tip-Light, Gases Detected Acetone, Alcohol, Ammonia, Benzene, Butane, Ethylene Oxide, Gasoline, Halon, Hydrogen Sulfide, Industrial Solvents, Jet Fuel, Methane, Naphtha, Paint Thinners, Propane, Refrigerants, Toluene