Forbes marshall codel pvt ltd manufactures accurate and reliable gcem1000 single channel in-situ probe type flue gas analyzer with infrared absorption gas filter correlation [gfx] technology to measure the gases. The company supplies these gcem1000 measuring probe mounted on the stack/duct. The flue gas analyzer uses an intrusive stainless steel measurement chamber equipped with sintered diffuser filters to allow flue gas excluding particulate into the measurement chamber. The gold-coated mirror in the model gcem1000 flue gas analyzer reflects back the infra red beam to the infrared detector mounted within the transceiver unit from transceiver unit through the probe measurement chamber. Some of the salient features of these flue gas analyzer include in-situ probe; no sampling/heating/conditioning of gases; works on ir gas filter correlation technology; highly accurate zero maintenance; full zero and span verification using audit gases; emc and lvd complaint; and remote data display.