Black substance......*From my fluke manual it would be
a masking tape...* I think I can scratch the idea out
immediately. I don want to smell black substance when
I am soldering. You are right. The modules aren't
cheap and not easy to build 1 from components.

A better thermocouple is in order for my task.

Thanks,
John

> measurement.  Either the 
> chip needs to be coated with a black substance that
> has an emissivitey of 1 or 
> you need to do a calibration to know the actual
> temperature.  The problem is 
> that the prices are many orders of magnitude higher
> than you want to pay.  The 
> optics to work with the heat type IR are expensive.
> 
> Have Fun,
> 
> Brooke Clarke
> 
> 
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> 
> 
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