Zhejiang Wellsun Intelligent Technology Co.,Ltd. engages in the research, production, and sale of electric energy measuring instrument and power automation systems. It offers sets of single-phase intelligent ammeters, three-phase intelligent ammeters, concentrators, collectors, terminals, and electric energy measuring boxes. The company also provides Internet of Things equipment, and distribution network automation and main station management systems. It serves customers in South Asia, Africa, the Middle East, Europe, and internationally. The company was founded in 1992 and is based in Tiantai, China.