the four-in-one gas detector generally has the detection function of 4 common harmful gases such as oxygen and combustible gas. in order to play the effect of the detector normally, it is necessary to know the alarm value range and setting of the four-in-one gas detector in advance. The following Yiyuntian staff will explain to you what is the normal range of the alarm value of the four-in-one gas detector. Let's take a look.

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a

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combustible gas:

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1, low alarm value LOW:10% LEL

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2, high alarm value HIGH:50% LEL

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CO:

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1, low alarm value LOW: 24PPM/30mg/m3

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2. High alarm value HIGH: 160PPM/200mg/m3

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H2S:

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1. Low alarm value LOW: 6PPM/r 10mg/m3

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2, high alarm value: 20PPM/r 28mg/

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1, low alarm value LOW: 19.5%

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2, high alarm value: 23%

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the above is the normal standard of the alarm value of the four-in-one gas detector introduced by the staff of yiyuntian, hoping to help you, if there is anything else you don't understand about the gas detector, please feel free to consult our staff.