Zhongke Zhengqi (Beijing) Technology Co., Ltd. is a high-tech company integrating research and development, production, and sales. It is a Zhongguancun Gazelle Enterprise and a dual-soft certification enterprise, holding numerous national product certifications, metrological certifications, environmental industry certifications, and related intellectual property rights. Since its establishment, the company has focused on the research, production, and related services of sensors, instruments, and software and hardware application systems in the environmental monitoring field. The company owns multiple wholly-owned subsidiaries and branches, with a research and development center and sales and service centers located in Beijing. It has over a dozen product series with independent intellectual property rights, including water quality monitoring systems for pH, temperature, conductivity, dissolved oxygen, turbidity, organic pollution indicators (COD), nutrient salt indicators (ammonia n...