This document introduces the features and usage methods of the Extech MO220 Moisture Meter. This product is a conductivity moisture meter specifically designed for the wood industry. It has eight calibration scales, enabling the user to take accurate moisture measurements in 170 wood species. Moisture measurements can be taken using the integral pin electrodes, or using the heavy duty moisture probe. When used with the temperature probe, the moisture measurements are automatically corrected with respect to temperature. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.