Combustible Gas Detector, Features Displays LEL and PPM, Infrared Downloading, Intrinsically Safe Design (Certified), Gases Detected Methane, Propane, Includes Hard Carrying Case, Wrist Strap, Maximum Operating Temperature 122 Degrees F, Minimum Operating Temperature -4 Degrees F, PPM Detection Range 0 to 50,000 ppm, Probe Length 16 in, Overall Height 11 1/2 in, Manufacturer Warranty Length 2 yr, Digital Display Screen Type LCD with Backlight, Standards ATEX Certified, UL Listed