Shenzhen Tongao Technology Co., Ltd. is a national high-tech enterprise dedicated to water quality analysis instruments, with multiple departments including laboratory water quality division, online water quality division, instrument operation and maintenance division, and instrument research and development division. The company is headquartered in Shenzhen and is a member unit of the China Environmental Protection Industry Association and the Environmental Monitoring Industry Association. Tongao Technology "is a registered trademark under the company and one of the best-selling brands of water quality analysis instruments. It covers dozens of conventional monitoring parameters such as COD, ammonia nitrogen, total phosphorus, total nitrogen, heavy metals, and multi parameters, and has multiple national patents with independent intellectual property rights. The standard production process, strict quality control, and perfect after-sales service are the service concepts that Tongao Technology continuously adheres to. The products have passed ISO9001 quality management system certification, national measuring instrument license certificate, national computer software copyright certificate, and metrology institute testing report. The company has a high-level technical support and service team, whose knowledge structure has already involved fields such as optics, chemical analysis, and computer software and hardware technology. In the process of development, Tongao Technology has long had exchanges and cooperation with high-precision technical talents from universities such as University of Science and Technology of China and Shenzhen University. Led by senior engineers, the research and development team has published multiple influential papers in world-renowned professional academic journals such as American Oil Chemistry, American Analytical Chemistry, and World Environmental Science. In the future, Tongao Technology will continue to adhere to the principle of "people-oriented, reputation first, service first", uphold the business philosophy of "customer first, forge ahead", take integrity as the fundamental principle of the company's survival, and constantly pursue the business philosophy of technological innovation. We believe that with high-quality products, reasonable prices, and comprehensive services, we can definitely contribute to the cause of environmental protection!