Combustible Gas Detector, Calibration Certificate Type Not Certified, Features Built-In Static Electricity Discharge Check, Gases Detected Gasoline, Includes Lanyard, Pocket Clip, Protective Cap, Maximum Operating Temperature 122 Degrees F, Minimum Operating Temperature 50 Degrees F, PPM Accuracy Not Applicable, PPM Detection Range 1,000 to 6,500 ppm (Natural Gas), 500 to 6,500 ppm (Propane), Probe Length Not Applicable, Overall Height 7 1/8 in, Manufacturer Warranty Length 1 yr