Yancheng Ding Ding Instrument Manufacturing Co., Ltd. is a professional high-tech enterprise dedicated to the research and development, production and sales of water quality analysis instrument. The main products include pH meter, industrial online and experimental ORP, dissolved oxygen meter, residual chlorine analyzer, turbidity meter, sludge concentration meter, conductivity meter, acid-base concentration meter, nano meter; industrial PH electrode, ORP electrode, electrode dissolved oxygen meter, chlorine electrode, electrode, electrode and acid-base concentration meter.Yancheng Aoding Instrument Manufacturing Co. Ltd. is located in the beautiful coastal city of Yancheng City, the company since its inception, with Jiangsu, Shanghai and other well-known universities and research institutes cooperation, the spirit of "beautify the environment for the benefit of mankind" concept, the development of innovation, technology and technological level of its products are in a leading position in the same industry. Environmental testing, products widely used in pharmaceutical, chemical, food, medical, health, environmental protection and water treatment, electric power, papermaking, breeding, fermentation engineering, textile printing and dyeing, petroleum chemical industry, the industry university research institute.