In 1940, " Rex "gave bith to China′s first pH meter and frst glass electrode, marking the birth of Chinese analytical instrumentsAs the first professional manufacturer of analytical instruments in China, " Rex " has been focusing on the innovation andaccumulation of electrochemical analysis instruments with more than half a century. " Rex " has unique advantages and statusThe product categories are constantly expanding and the technical level is increasing. " Rex " has more than 100 kinds ofelectrochemical analysis instruments, sensors and applicaion solutions, including all kinds of instruments, such as laboratoryonline and on-site testing, taking the lead of the domestic electrochemical analytical instrument industry and catching up with theinternational advanced level.