Combustilbe Gas Detector Detects Butane Diesel Gasoline Most Other Flamable Gases Natural Gas Propane Measuring Range 0 to 19.9 Percent LEL 0 to 9999 ppm Combustibles Audible Visual Indicator Features 16 in Gooseneck Wand Backlighted Display Thumb Wheel Tick Rate Adjuster Visual Display and Tip Signal Indicators Battery (2) C Includes Meter Nylon Pouch User Manual Manufacturers Warranty Length 3 yr (Instrument) 2 yr (Sensor)