M.C. Miller Co., Inc. has been serving the needs of the corrosion control industry since 1945 as a manufacturer of equipment and software for the collection and management of corrosion control data. We offer state-of-the-art data loggers, CIS and DCVG survey equipment, soil and marine reference electrodes, soil resistivity test kits (including resistance meters), GPS current interrupters, CP system multimeters, voltmeters, coupons, and fange and casing insulation checkers. M.C.Miller Co., Inc.—Trusted by Corrosion Engineers Worldwide.