Advantages and disadvantages of CNT sensors versus conventional gas detectors

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leoflc
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I'm wondering what are the pros and cons of the CNT sensors and conventional gas detectors?
I know that CNT sensors can detect very low chemical adsorption energy, which a conventional gas detector probably can't.

Besides that, is there any more pros and cons of the two?

Thanks!
 
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Big problem with CNT so far, is producing a consistent product in any meaningful quantity.
CNT production is still very much a black art.
 
Thanks for the reply!

But how about the cost?
I guess CNT is probably still pretty expensive, but I have no idea how much is the conventional gas detector usually cost. (since I've only seen it on tv..)

Thanks.
 
AFAIK you can't buy the CNT variety.
It's one of a kind, proof of concept stuff.

How much a conventional detector costs depends on what you're detecting and the sensitivity.
You can get something like a CO detector in the $20 to $30 range.