Re: data recorder

["Waldron, James" <James.Waldron@CWUSA.COM>]

I'm kind of a 'roll my own' kind of guy.  Does anyone know exactly how O2
sensors work.  I know they have a special coating.  Do they require power?
Is it just a change in Resistance depending on how much O2 at a particular
temperature?

Thanks,
Jim.

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