Ed Pawlowski wrote:
"Red Green" wrote in message


In the bag/dun deal test and cal from NOAA/NWS:

http://www.srh.noaa.gov/elp/wxcalc/cricketconvert.shtml

That should work most of the year but the crickets tend to be quit at
5 below.

I did some searching and found a Zephyr Instrument model that is
supposed to be accurate to 0.5 degrees. That is a more sensible
tolerance.

A practical solution is to use a human body temperature thermometer for
calibration. While they have a very small range (~96F - 104F) of
resolution, you can count on them to be accurate.

It would also be interesting to use a non-contact thermometer and hit the
signal off of the sensor element of the weather station.

Jon