Anyone have one in their shop to gage the ambient humidity?
Thinking about getting one for the shop to check the levels for wood storage.
Any recommendations?

Yeah I use this one....https://www.amazon.com/gp/product/B0013BKDO8/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1
Had it for 3 years and it has worked great.  I put it in my hot box, my refrigerator, my house, and my shop to measure humidity and temperature.  I haven't changed the batteries since I got it either.  I'm sure there are better ones, but this one has worked great for me.

I have two of them in my stave storage room inside one is digital I think made by accurite $10 and the other is a azimuth dial cigar humidor one ,they both work good right now here I'm at 30% RH dipped down to 23% last month.