YUDIAN AUTOMATION have been in this line since 1991, whose products have won good reputation from our customers all over the world and become No. 1 manufacturer of this industry in China. Yudian is specializing in developing and manufacturing industrial process automation controller instruments, including temperature/process controllers, indicating/alarming instruments, flow totalizes, voltage/current/power meter, paperless recorders etc. Yudian has established several subsidiary companies and branches in North America and Oceania, and 20% of output for export to Hongkong, India, Australia, New Zealand, America, Southeast Asia and Europe, and are highly ranked by our customers.