The Extech MO220 is specifically designed for monitoring moisture in wood, with a memory containing eight wood groups with calibrations for approximately 170 wood species. Measurements can be taken using the integral pin electrodes or the included heavy duty remote probe. the MO220 offers automatically temperature compensated (ATC) readings when used with the temperature probe. Professional features include a built-in calibration check, replaceable measurement electrode pins, user-settable Auto Power off (1 to 9 minutes) with disable, and low battery indication. Comes complete with protective cap, temperature probe, heavy duty remote moisture probe, replacement pins, two AAA batteries, and soft case.