The Market Department of Shanghai Liyou Electrification Co.,Ltd sells the following kinds of domestic and foreign apparatus and instrument: high voltage bridge, digital coil measuring instrument, anti explosion cabinet, diesel generator, soft starter, electrical harmonic analyzer, high voltage tester, adaptor of power supply, and the anti lightning device of the power supply.

The LGY series instrument is used in measuring the windings of the coil: e.g., winding of a generator, coil of a transformer, coil of delay, windings of high and low voltage packages of TV set, and automobile igniter in a high measuring accuracy. The different shapes and sizes of the coils affect the measuring accuracy slightly. For winding number from 0 to 60,000 turns, an accurate measurement still can be made without changing the range, which has increased the convenience of application and the operation life of the instrument.