Established in 1998, KINGSIN Xinxin Electric Co., Ltd. is a young energetic company whose business concentrating in the field of R&D, production and sales of Electric Test& Measurement Instruments. KINGSIN is a high-tech enterprise and software enterprise recognized by China authority plus with ISO9001:2000 certified.Being the leading manufacturer for secondary test equipment in domestic power industry, KINGSIN&＃039;s lines range from microcomputer protection relay test set, high precision electric calibration instrument, high precision electric calibration source to Automatic AC Sampling Integrated Calibrator etc., . The quality of KINGSIN&＃039;s products have been well approved and recommended for long years by National Institute of Metrology ***** and by Power Research Institutes locate in every province of China; And KINGSIN&＃039;s lines are extensively applied to power industry, metallurgy industry, petrochemical industry, railway and scientific research institution as well as industrial and mining enterprises and power equipment factories that on a large scale. KINGSIN appreciates the constant supports from her loyal customer base widely spreaded over fifteen countries and areas such as China, Hong Kong (China), Macao (China), Philippines, Malaysia, Vietnam, Indonesia, Thailand, Mid-east, and Sudan in Africa. And KINGSIN also keeps her eyes on developing the market in Europe and North America. Stick to the belief of Novelty in Technology and of Detail in Service, we KINGSIN shall continue spare no effort to serve customers worldwide with innovative technology, reliable product and quality service in the hope of becoming the world-class Manufacturer for Electric Test Equipment & Software in early days