Wuhan Kangda Electrical Co., Ltd. (also known as KDDQ) is the most reputable developer, manufacturer, supplier and exporter of insulation testers, earth resistance testers and lightning protection device testers in China. Our company is located in the center of the high-tech district in Wuhan City, Hubei Province, which is in the middle of China and is well-known for its convenience in transportation. KDDQ has been leading in insulation measurement techniques since the establishment of our company in 1989. We are also involved in enacting several national standards for the measurements of...