I'm just getting started in woodworking and have built my first dining room table out of 4/4 walnut slabs. It looked great until the past couple of months and some of the edge glued seams started separating, and it seems like they are just getting worse. Picture below.
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That seem was tight when I first glued it up. From what I've read it seems that the wood not being dry enough is the most likely culprit.
So, my question is what moisture meter should I own? I felt like I should own a moisture meter, so I went out and bought a Dr. Meter MD-812 moisture meter, but I'm now wondering if I shouldn't have spent more money on a more expensive model. Being a new woodworker, I have a hard time knowing what to spend premium money on and what is good enough. What do you all recommend for moisture meters? It seems like a really important part of the equation... or maybe I'm being too paranoid about it?