Combustible Gas Detector, Calibration Certificate Type Available Separately, Gases Detected Acetone, Alcohol, Ammonia, Benzene, Butane, Ethylene Oxide, Gasoline, Halon, Hydrogen Sulfide, Industrial Solvents, Jet Fuel, Lacquer Thinner Methane, Methane, Naphtha, Natural Gas, Paint Thinners, Propane, Refrigerants, Toluene, Includes Battery, Detector, Manual, Maximum Operating Temperature 122 Degrees F, Minimum Operating Temperature 32 Degrees F, PPM Accuracy +/-5ppm, PPM Detection Range 50 ppm. This item has been restricted from sale in the following state (s): []