The P-2000 is an electrical resistance-type meter, utilizing the relationship between moisture content and electrical resistance. You can find this excellent moisture meter online at Restoration Express. The contact pins mounted on the top of the meter are used for making direct contact with the material. Various external electrodes are also available for specific applications. The P-2000 is especially useful for testing paperboard, corrugated stock, and paper tubes. It is ideal for plant superintendents, inspectors, buyers, and salespeople.