Combustible Gas Detector Detects Butane Diesel Gasoline Kerosene Methane Natural Gas Propane Measuring Range 0 to 999 ppm Accuracy +/-10 Percent Audible Visual Indicator Features LEL Percent Reading 2.1 Percent to 100 Percent CE Listed UL-913 Approved Battery (3) C Height 10 in Width 3 1/2 in Depth 1 1/2 in Includes Batteries Detector Zippered Soft Case Manufacturers Warranty Length 2 yr