The Timber Check meter is made from rugged ABS plastic, making this compact unit equally at home in your hand during use or stowed away in your tool box or pocket. Your Timber Check meter has circuitry designed with excellent temperature compensation and has been individually calibrated using fixed components. Also included with your new meter are four pages of literature consisting of operating instructions, a species adjustment table for 88 species of wood, as well as a short course on moisture in wood and its effects. Comes with standard 9-volt battery and 3 yr warranty from manufacturer. Made in Canada.