Gas analysers

Gas analysers are instruments that measure the concentration of one or more target gases in a sample stream, reporting the result as a percentage, a parts-per-million reading, or a partial pressure. They work across combustion monitoring, emissions testing, process control and ambient air quality, and the detection method varies by target: electrochemical cells for oxygen and toxic gases, infrared absorption for carbon dioxide and hydrocarbons, paramagnetic sensing for oxygen, and separation columns in the chromatograph types. Of the current listings on Questpair, 98 percent are used. Prices run from EUR 86 to EUR 14.000. New, used and refurbished laboratory units appear across 11 verified suppliers and distributors.