ESP Safety Vector 2-channel gas detector controller with smart Catalytic Bead Plug-In sensor included to detect 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), Petroleum, Propane (C3H8), Propanol (C3H7OH), Propylene (C3H6), Styrene (C8H8), Toluene (C7H8) or White Spirit 0-100% LEL. Operates as a stand-alone display for a variety of ESP sensors which can be remotely located up to 500 feet away over 4-wire RS-485. Sensor head can also be attached. Includes analog 4-20 current loop with HART, Digital RS-485 Modbus RTU and 4 relays. 96-Character OLED Screen. 316 Stainless Steel or Aluminum Explosion-proof housing. IP67. SIL 2, FM/CSA Class I Div 1 certification. Optional 2nd sensor available.