SDAR is a professional instrument manufacturer located in Songjiang National ranked Industrial Park, Shanghai, China. Founded in 1987 in Wenzhou, and removed to Shanghai in 2002, till now there is long history of 26 years. SDAR is the first manufacturer in China to bring in and produce American inside-magnetism meter and also the first one in China to acquire UL, CE approval.

We do OEM and ODM for many professional instrument companies all around the world. We specialize in researching, designing and manufacturing Analog and Digital Multimeter including Smart Multimeter, Analogue Multimeter, Digital Multimeter, Clamp meter, Insulation resistance tester, Education meter, Panel meter, Battery tester and Wire Tester. Our customers cover areas of America, Europe ---- UK, Germany, France, Italy etc, South America - Brazil, Argentina, Chile, Brazil, Mexico etc, Japan, Korea, India and other nearby countries and areas in Asia such as Taiwan, HongKong etc. SDAR has passed ISO9001: 2008 assessment, some products have acquired UL, ETL, CE/LVD and RoHS approval.

There are about 140 workers, 7 production lines in Shanghai SDAR. The total area is 20000. The main products includes analog meter, DMM, Clamp meter, Voltage tester, cable tester etc. We have strived globally for design innovation, higher quality, safer, durable, accurate and cost -effective technological products to meet customers' needs. SDAR's aim is to be the leader of the measuring instrument in the future.