Shanghai Freesor Electronics Co., Ltd is a high-tech joint venture established in 2005 by Ying Wei International and a group of talents who had well design and RD experience, as well as overseas education background. Freesor Electronics consists of sensors division and semiconductor division. Shanghai Feixuan Electronic Co., Ltd is a equipped with a high level RD team, as well as advanced IC design and complete testing equipment. Shanghai Feixuan Electronic Co., Ltd is a enjoying a technological advantage in the Hall current voltage testing, power management IC, and clock chip areas. Meanwhile, we are having great business relationship with well-known chip companies, , packaging and testing companies, domestic and foreign. And that allows us to provide and benefit our customer more with better product and technical support. Our own Freesor brand products (Hall current voltage sensors and semiconductor electronic) are well-received by customers in Asia, Europe, the United States and many other countries. Our products have been widely used in power supplies, industrial automation, welding machine, inverter, UPS EPS, automated teller machines, attendance machine, access control, instrumentation and other industries. With our experience and technical expertise, networking with vendors, we can assist you to succeed in growing your business! Freesor Electronics is headquartered in the most vigorous commercial metropolisâ??Shanghai, with branch offices in Beijing, Wuhan and Shenzhen to provide better services to clients in North China, Central China, and South China respectively. We also set up customer service center for all customer feedback on product information and technical advice. We sincerely welcome business relationship and informative exchange with friends in this industry!