Doug,

Whereas indoor humidity is what interests you, what is happening 
outdoors is what can influence it, with a time delay. I'd seriously 
suggest you have a data-logging weather station with indoor 
humidity/temperature sensors situated at working station level, but not 
close to actual stations to avoid human interference.

For many years I have been following outdoor/indoor conditions. with a 
Davis weather station and I can see the influence wind, sun. outdoor 
temperature and humidity and rain have on indoor conditions. I use these 
data to decide how to set heating/air conditioning levels for comfort 
and economy in the home a few hours in advance of changing weather 
conditions.

You may wish to take a look at 
http://www.davisnet.com/weather/products/index.asp for the hardware. For 
the software, I use a more sophisticated one than the Davis one at 
http://www.weather-display.com/ and for accurate forecasting you can use 
http://www.wxsim.com/

Brian



On 29/11/2012 21:16, Douglas Pauls wrote:
> Good afternoon everyone,
>
> I would like to know if any of you have, in your facilities, wireless
> humidity sensors that connect into a master data (digital) recorder?   We
> are trying to get a better method of measuring facilities humidity levels
> than old paper chart recorders.
>
> I am looking for a short list of ones to look at.  Please respond if you
> have experience with a system.
>
> Thanks.
>
> Doug Pauls
>
>
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