ESP Safety SGOES Infrared Gas Detector for measurement of hydrocarbon gases, Acetone (C3H6O), Benzene (C6H6), Butadiene (C4H6), Butanol (C4H9OH), Butanone (C4H8O), Butyl Acetate (C6H12O2), Cyclohexane (C6H12), Cyclohexanone (C6H10O), Cyclopentane (C5H10), Diesel Oil, Diethylamine (C4H11N), Ethane (C2H6), Ethanol (C2H5OH), Ethyl Acetate (C4H8O2), Ethyl Oxide (C2H4O), Ethylene (C2H4), Gasoline (C8H18), Heptane (C7H16), Hexane (C6H14), Isobutylene (C4H8), Isopropanol (C3H8O), Kerosene, Methane (CH4), Methanol (CH3OH), Methyl Chloride (CH3CL), Methylene Chloride (CH2CL2), MTBE (C5H12O), Oil, Para xylene (C8H10), Pentane (C5H12), Petroleum, Propane (C3H8), Propanol (C3H7OH), Propylene (C3H6), Styrene (C8H8), Toluene (C7H8) or White Spirit 0-100% LEL and others. Factory calibrated at 0%, 20%, 50%, and 95% LEL. Analog 4-20 current loop with HART, Digital RS-485 Modbus RTU and 3 relays. Includes protective weather cover and mounting hardware. IP66. SIL2 Rated. FM, ABS, IECEx, CE and CSA, Class I Div 1 Approved. Stainless steel construction. T90 response time= < 5 seconds (methane).