Ok, in that case I already have four digital thermometers that read very close in both temperature and humidity. I was thinking of a more long term logging solution as a 90 degree shady day will leave the house cooler than an 80 degree day with full sun if the starting temperatures were the same. So it's a bit hard to take data from one day and call it good unless I know it's a record day and we won't have clouds which might take more patience to find the day and then log it hourly for a long period especially when I might either not be home or awake during the period I'd like to log.
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