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MQ2 gas sensor operation

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Marko Dagohoy

New Member
hi.
i just want to how MQ-2 identify different kind of gas, is there some kind of technique used in the module that is why it is able to detect different kind og gas?? if you know something pls tell me.. it would be really helpful.
 

alec_t

Well-Known Member
Most Helpful Member
Welcome to ETO, Marko!
You have just hijacked a resurrected 3-year old thread. Bad practice. Better to start your own threads if you expect replies.
 

JimB

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Most Helpful Member
I have moved this to a new thread with a more appropriate title.

Marco, welcome to ETO

JimB
 

jpanhalt

Well-Known Member
Most Helpful Member
Have you looked at the datasheet? Here it is: http://www.seeedstudio.com/depot/datasheet/MQ-2.pdf

It does not identify an unknown gas typically. It is for detection of any of a group of "combustible" gases.

Are you asking how specific the detection is and whether there are gases that will interfere with it? Or, are you asking the mechanism by which SnO2 detects the gas?

John
 
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