Shanghai Freesor Sensor Technology Co., Ltd.

Shanghai Freesor Sensor Technology Co., Ltd. was co-founded in 2005 by a number of experienced overseas returnees, and is a high-tech enterprise specializing in design, research and development, production and sales. FREESOR is a holding subsidiary of Keli Sensing (stock code:603662), and its FREESOR independent brand covers special sensors for new energy vehicles, open-loop and closed-loop Hall current and voltage sensors, leakage current sensors, etc., which are widely used in new energy vehicles, photovoltaic, energy storage, rail transit and other industries. Our products have reached the leading level in the industry in terms of stability, precision and antiinterference. We have a high-level R&D team and advanced IC design and test equipment, and maintain close cooperation with well-known chip design companies at home and abroad. Relying on the cutting-edge technology of global semiconductor manufacturers, Freesor provides customers with cost-effective products and technical support to help the overall application solutions of electronic products. After years of market test, Freesor has won the recognition of industry customers and has been exported to Southeast Asia, Europe and the United States and other countries and regions.