Knowing how much moisture is trapped in a board helps you during the milling process, when fitting parts, and even when making repairs. And the easiest way to determine this factor is to use a moisture meter. Contributing editor Roland Johnson tested a range of meters and decided that the pinless variety was the best choice for woodworkers. In that category, he tested seven meters for accuracy and consistency, using them in thick and thin lumber, narrow and wide stock, and in roughsawn lumber. When he was done, he not only knew the moisture level of every piece of lumber in his shop, but he also knew which meters he would recommend.

From Fine Woodworking #210

Online Extra: Printable EMC Chart