Combustible Gas Detector, Calibration Certificate Type Not Certified, Features Automatic Calibration, Heated Sensor, Gases Detected Acetone, Acetylene, Alcohol, Ammonia, Benzene, Butane, Ethane, Ethanol, Ethylene, Gasoline, Hydrogen, Hydrogen Sulfide, Industrial Solvents, Isobutane, Methane, Methyl Ether, Propane, Toluene, Xylene, Includes Hard Carrying Case, Leak Check Vial, Maximum Operating Temperature 125 Degrees F, Minimum Operating Temperature 24 Degrees F, PPM Accuracy 5 ppm (Methane). This item has been restricted from sale in the following state (s): []