Dewey instruments in Hefei science and technology co., Ltd. is a professional manufacturer of HVAC and process instrument that integrates scientific research, production, sales and service in one. Dewey instrument established Shanghai Co., Ltd. production company, Shenzhen, Hefei and other units of the Office.  

of Dewey's instrument has a background of Chinese Academy of Sciences was founded in 1995, setting up development and production since the beginning of the DW801 series pressure transmitter and DW901 series liquid level transmitters on the market, well received by user. since the 1996 United States DWYER instruments company has successfully introduced China to the present, unique magnetic coupling technology of micro differential pressure differential pressure meter table was used in China, and Deputy United States units of tens of thousands of DWYER instruments.2004 year, Dewey's instruments work together to France KIMO instruments company, the first instrument of intelligent technologies into China's HVAC industry, convenient range-change the dial switch and convert compelling, deeply love of instrument engineer HVAC.  

in order to resolve inconvenience after-sales maintenance and purchase delivery problems longer, higher prices for imported products.2008 year du Wei instrument manufacturers and international cooperation, introduced production technology of intelligent instrument in high-tech development zone, Hefei Shushan release high-end intelligent instruments and creation of joint University of science and technology of China and the Shanghai Jiao Tong University scientific research of intelligent instrument embedded technology.  

after years of development, Dewey's instrument has been formed with six series of dozens of products full line of HVAC and process control instruments, functionally closer to the domestic user habits. Dewey instrument either the quality or the performance surpassing similar products at home and abroad, in an increasingly competitive marketplace have won praise and favor.