Combustible Gas Detector, Calibration Certificate Type Available Separately, Features Adjustable Tick Rate, Earphone Jack for use in Noisy Environments, Two Line Display with Bargraph and Backlight, Gases Detected Acetone, Acetylene, Alcohol, Ammonia, Benzene, Butane, Ethanol, Ethylene Oxide, Gasoline, Hexane, Hydrogen, Methane, Naphtha, Paint Thinners, Propane, Solvents, Includes Sensor (Installed and Calibrated), Soft Carrying Case, Maximum Operating Temperature 104 Degrees F. This item has been restricted from sale in the following state (s): []