Robert Rolf wrote:
>
> It very much depends on what kind of glass you're trying to look
> through.

You obviously know more about this than I do,
but it occurs to me that you could do one
set of tests with a thermocouple and compare
to the reading on the non-contact unit.
Surely this would give a simple chart or table
that would then allow the more convenient system
to be used with ok accuracy?
-Roman

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