Thanks Ron, I think. It would seem as though you feel that the calibrating media are a bit overpriced. Upon reflection, Yikes! >>Both at a bargain price of only $33. [EACH} or that the unit can be useful in making dinner, and will monitor my sodium intake. Don't forget, you get those cute little jars. Are you also suggesting that the tool itself is of questionable value? 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)? David Skolnik Hastings on Hudson, NY At 04:52 PM 12/9/2008, you wrote: >>The one I mentioned is: >>http://www.generaltools.com/Products/Calibratable-Digital-Psychrometer__EP8706.aspx > >And down below are the salts for calibrating it. A saturated dish of >good old table salt stabilizes the RH% in a sealed container at very >close to 75%. The other is magnesium chloride, used by the ton as a >road deicer, as is salt, and for making tofu (figures), which will >produce very close to 33% RH under similar conditions. Both at a >bargain price of only $33. > >Ron N > > > >-- >No virus found in this incoming message. >Checked by AVG. Version: 7.5.552 / Virus Database: 270.9.15/1838 - >Release Date: 12/8/2008 6:16 PM
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