Yudian Automation Technology Co.,Ltd has been devoting itself to the development and manufacturing of industrial process automation controller instruments since 1991. Our controlling and indicating instruments are widely applied in various industries, ranging from chemical, petroleum, metallurgy, pharmaceutical, food and beverage to academic laboratories and so on. Through 20 years' development, Yudian has become No.1 Chinese intelligent instrument manufacturer, with the largest domestic market share and annual sales of over 400,000 units. Headquarted in Xiamen, China, Yudian has been establishing many subsidiaries and branches in Hong Kong, North America and Oceania, strong authorized distributors in various countries as well. Up to now, our products have been sold and highly ranked all over Hong Kong, India, North America, South-east Asia, Africa and Europe. Yudian has contructed modern factory with an area of 10,000m2 in Xiamen. With multiple advanced production and test equipments, such as fully automatic computer placement machine, lead-free dual crest welders, infrared reflow welders, high-temperature and highvoltage aging room, electromagnetic compatibility testing and temperature humidity environment testing, Yudian promises highest quality, highest precision, highest reliability and lowest temperature drift for instruments, with certificates of ISO 9001-2008, CQC, RoHS, CE and UL.