Feature delivers quick and reliable output by using electro chemical / pellister sensor technology. Optimized for detection of slightest trace of carbon monoxide, Oxygen, Or other toxic or combustible gases. Extremely durable against toxins and corrosion, With the option to detect concentrations as low as ppm /0lel & %vn. Electronic readout of gas levels on led display typical 4-20 mA signal output featuring configurable range. Easy handling and programming with 3 keys for weatherproof models. Non, Intrusive programming for flameproof model using magnetic pen. Secure coding secured by a password changing facility. One man auto software gas calibration. Additional alarm relay feature contacts featuring dual adjustable alarm settings & one relay for fail safe relay. Optional stel and twa set points can be Designed for hazardous materials gases. Optional rs, 485 communication port with modbus rtu protocol. Approval & compliance approval & compliance for flameproof certified to ex, D iia, Iib, T6, Ip66 standard compliance is/iec 60079, 0 2004 is/iec 60079, 1 2007 is/iec 60529 2001 application gas measurement platform bank natural gas measurement facility gas cylinder heating unit / firebox areas energy from petroleum and natural gas industries bullet outdoor space / organization yard Natural gas transmission initiative industrial chemical facility refineries Production of dyes and pH-balancing acids plants cold storage offshore drilling & processing platforms sewage plants facilities for thermal processing fertilizers plants hazardous materials storage zone stack monitoring control atmosphere chlorination plant energy and manufacturing plants ambient monitoring mining site and restricted space paper and pulp plants oil and gas industry products plants