Methane sensors DO exists. In fact I have one right now with me. It also
detects CO, propane and other gases... oh, and also Alcohol.

Regards,

Mauricio Jancic
Janso Desarrollos
Microchip Consultant Program Member
info@janso.com.ar
www.janso.com.ar
+54 11 4542 3519

> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf
> Of Mike Hord
> Sent: Thursday, January 05, 2006 11:52 AM
> To: Microcontroller discussion list - Public.
> Subject: Re: [EE]: Methane Sensor
> 
> > Anyway I was wondering if anyone know of a solid-state methane sensor?
> > I was following the news about the trapped miners but all I found
> > with Google were a flame type sensor (however that works). Does
> > anyone have any info or links?
> 
> I replied on Monday, and was "suggested" to have been wrong, but
> I'm fairly certain I've heard of methane detectors used to activate
> stink maskers in restrooms.  IIRC, the surprise was that they were
> able to make it cheap enough.
> 
> This was years ago, however, so the company involved may have
> folded up and disappeared long ago.
> 
> Mike H.
> 
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