[CAUT] A record low humidity reading, for me

[Ron Nossaman]

> Thanks Ron, I think.  It would seem as though you feel that the 
> calibrating media are a bit overpriced. Upon reflection, Yikes!

I wouldn't call it a feeling. Perhaps a fact.


>Are you 
> also suggesting that the tool itself is of questionable value?   

I didn't say anything to even remotely suggest that.


>Any 
> idea as to where I would find the explanation for the characteristics 
> (75% & 33%) you describe, or how precise the solutions would need to be 
> (in case we have a bad winter)?

Google calibrating a hygrometer with salts. There are plenty 
of them listed.
Ron N