Kingsine Electric Automation Co., Ltd. is a leading manufacturer of electric testing and measurement instruments for the global relay-tester market. Founded in1999, it has been recognized as a high-tech enterprise and a software enterprise with our strong research and development, production and sales capabilities.

Kingsine offers a range of precision products for electric testing and measurement such as Protection Relay Test Set, Standard Power Calibrator, RTU-Tester and Multifunctional Power Meter. These products are widely used and approved by over 80 countries in various industries, including electrical powermetallurgy, petrochemical, railway mining and scientific research. Kingsine also provides free repair for 3 years aspart of its quality warranty.