Ark Electric & Mechanical Co., Ltd. is a professional manufacturer specializing in the research, development and production of various precise metering pumps, flow sensors, industrial online monitoring and control instruments and control systems. We are committed providing excellent products and services in such fields as waste water treatment, pure water process and water purification project, petrochemical industry, food and beverage, electrical power, metallurgy, pharmacy, paper making, printing and dyeing, bioengineering and environment detection. In 2001, the first electromagnetic diaphragm metering pump NEWDOSE was produced in China by adopting imported technology. Through over ten years' continual efforts and innovation, our annual sales volume has reached 30,000 sets. Our company has become one of the largest electromagnetic diaphragm metering pump production bases in China. Domestic and overseas advanced technology and brand new design idea are adopted for ARK series water quality monitoring instrument. Furthermore, focusing on high quality and customer service, first-class management idea and perfect after-sales service system are adopted to provide customers with the most suitable and economical automation scheme. Our company has been always attaching importance to talents and technical innovation. At present, our company boasts senior industrial engineers, professional R&D team and experienced field technicians. In the meantime, we continually perform close technical exchange with domestic and overseas companies in this industry based on enhancement of laboratory study, ensuring the product innovation and continual development in the industry. The company provides the following products, technology and service: Various precise metering pumps: NEWDOSE electromagnetic drive diaphragm metering pump: DFD/DM/DP/DC series Flow sensor: Impeller type flow sensor. It is used for the measurement and control during industrial flow process. Industrial online monitoring and control instruments: Industrial PH/ORP analyzer, industrial conductivity meter, residual chlorine monitoring meter. Dosing control system: Chlorine dioxide controller; dosing system and fluid monitoring system need to be customized.Enterprise spirit: Unite, self-improvement, innovation & practical and good credit. Enterprise tenet: Quality and users come first Enterprise pursuit: providing customers with the most satisfying service by reasonable price, high-quality products and good work attitude.