Review on Pinless Digital Moisture Meter for Wood, Drywall, Firewood, and Paper, Detects Moisture up to 1.96 Inches below Surface with Water Leak Detector and Temperature Measurement - Featuring Moisture Limit Value Setting by Michael Jennings

You'll need this if you saw wood or do a lot of wood work. There's nothing worse than putting a piece of fresh wood on a table you thought was dry and seeing your work crack or warp that same summer. We cut the wood and used solar ovens to dry it (similar to the one pictured above) and it's a great way to test the wood after a few weeks to see if it's still done.