Yongnuo Electrical (Yueqing) Co., Ltd. was founded in 2008. It is a modern manufacturing enterprise focusing on the research and development, production and sales of smart digital display energy meters. The company's products include multifunctional single-phase and three-phase energy meters, rail-type energy meters, wall-mounted energy meters, energy quality analyzers, energy monitoring systems, prepaid energy sales systems, electrical fire-proof and current-limiting protectors, motor protectors, microcomputer integrated protection devices, anti-islanding protection devices, switch cabinet intelligent control devices, intelligent control temperature and humidity monitoring devices, temperature and humidity controllers, intelligent dehumidification devices and other 12 series, nearly 200 types of products. The products are widely used in power complete sets of equipment, intelligent Internet of Things, automation equipment, industrial and mining enterprises, intelligent buildings, airports, subways, mechanical metallurgy, municipal engineering and many other fields.