The 85L1, 44L1, 69L9, 59L1, 85L17, 69L17, 91C4, and 69L13 series instruments consist of measuring circuits, measuring mechanisms, and indicating devices. The supporting part is composed of gemstone bearings and shaft tips, and the movable part is composed of magnetic systems, moving coils, and pointers. This series of instruments adopts a magneto electric internal magnetic structure. Plastic shell, fully transparent organic glass, using printed dial, overall beautiful and generous, with a wide field of view.

85L1, 85C1 type electric meters