when it comes to gas detectors, it often refers to portable gas detectors, among which gas detectors can be divided into single gas detectors and all-in-one gas detectors, that is, for 1 kinds of gas detectors and for simultaneous detection of multiple gases, there are generally optional built-in pump, position pump suction detection principle or natural diffusion detection principle. All-in-one gas detector can be made into two-in-one, three-in-one, four-in-one gas detector. Today, the staff of Yiyuntian want to share with you the knowledge of which gases can be detected by the four-in-one gas detector. Let's take a look.

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four-in-one gas detector can detect the following gases:

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combustible gas (LEL): there are many combustible gases, such as hydrogen (H2), carbon monoxide (CO), methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10), ethylene (C2H4), propylene (C3H6), butene (C4H8), acetylene (C2H2), propyne (C3H4), butyne (C4H6), hydrogen sulfide (H2S), phosphine (PH3), etc.

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Oxygen (O2): Oxygen is extracted from the air liquefaction process, and the oxygen content in the air is 21%. It is the basis of all respiratory and combustion processes and is therefore a prerequisite for almost all life processes.

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carbon monoxide (CO): 1 is a carbon-oxygen compound with a chemical formula of CO and a molecular weight of 28.0101. it is usually a colorless, odorless and tasteless gas.

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hydrogen sulfide (H2S): hydrogen sulfide is a 1 inorganic compound with a molecular formula of H2S and a molecular weight of 34.076. under standard conditions, it is 1 flammable acid gas, colorless, smells of rotten eggs at low concentrations, and sulfur at extremely low concentrations, and is highly toxic (LC50 = 444ppm & lt;500ppm).

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the four-in-one gas detector mainly detects the above-mentioned gases. the content of the four-in-one gas detector will be shared here today. the gas detector can generally be applied to closed and semi-closed spaces, as well as post-fire safety inspection. There are many fields of application, such as petroleum, chemical industry, metallurgy, mining, fire protection, gas, environmental protection, electric power, communication, papermaking, printing and dyeing, grain reserve, urban water supply, sewage treatment, food, scientific research, education, national defense and other fields.