Yuyan Information Technology (Shanghai) Co., Ltd. is located in the Internet of Things Industrial Park in Jiading District, Shanghai. It is a high-tech company specializing in the research and development of new environmental monitoring sensors, complete environmental monitoring equipment, and IoT sensing layer devices. The company's main technical strength relies on the National Laboratory of Biosensors at Zhejiang University and the Sensor Center at the University of California, Berkeley. It has jointly developed various environmental monitoring sensors and advanced sensing technologies with the Zhejiang University laboratory, and has honed an efficient industry university research application model. The company fully utilizes the research achievements of its core team in micro nano biochemical sensors, water quality online detection technology, POCT sensors, and nano gas sensors, continuously promoting the industrialization process of various products and becoming a new force with strong influence in this field. Through years of technical experience and channels accumulated by the company's management and technical team, we provide high-quality products and solutions to various customers. The company currently has a Sensor R&D Department, Measurement and Control Integrated Circuit R&D Department, Software R&D Department, Market Operations Department, Industrial Design Department, Assembly Production Department, and After sales Service Department. We can provide users with various monitoring products including water, gas, forest, and soil, as well as customized services. At the same time, the company has an excellent system integration team to provide external services such as IoT project integration engineering implementation. Our mission: Professionalism is the foundation, service is the guarantee, and quality is the reputation. With reliable product quality and excellent after-sales service, Yuyan has won the recognition of a large number of users. Its product applications cover industries such as environmental monitoring, ecological protection, meteorology, agriculture, fisheries, and smart cities.