KL WATT-HOUR METER : DD862 TYPE SERIES SINGLE PHASE WATT-HOUR METER DD418 TYPE SINGLE PHASE WATT-HOUR METER TECHNICAL PROPERTIES Transparent polycarbonate cover. Bakelite or steel base. Bakelite of steel base. Bakelite of steel base. Magnetic bearing Synthetic material coating core. 06 digits register Both mechanical and technical data are same as the ATP series meter designed by ISKRA.