I've been using this digital thermo/hygro for a while now and so far it is my favorite for the walk-in. It is NIST certified "traceable", responds quickly and has a memory buffer to check history. It is accurate to +/-2%RH. I found it at "The Weather Store" and several other places for around $60. It is made by the Control Company.
A very small fan located in one corner of the humidor and directed parallel with the wall will set up a slight but effective air rotation within the room, eliminating stagnant air pockets.
Last edited by DeeDubya; 10-23-2009 at 12:24 PM.
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