Calibration gas, Carbon Monoxide, Hydrogen Sulfide, Methane Oxygen, Nitrogen, 58 L, C-10 Connection
4 Percent LEL) 1.53 in, Cylinder Height 14.25 in, For Use With All OEM Gas Detectors, Gas Mixture Carbon Monoxide 50 ppm, Hydrogen Sulfide 25 ppm, Methane (32.62 Percent, Oxygen 19 Percent, Propane (50 Percent LEL), Gas Type Carbon Monoxide, Hydrogen Sulfide, Methane Oxygen, Product Type Calibration Gas, Chemical Formula CH4, CO, H2S, O2.