Shenzhen Langshi Scientific Instrument Co., Ltd. is an innovative high-tech company with the richest online water quality monitoring products in the world. It is committed to the research and development, manufacturing, sales, and service of water environment management platforms, intelligent operation and maintenance management platforms, system integration, micro intelligent water quality monitoring stations, a full range of intelligent water quality online monitoring devices, laboratory automation and emergency detection devices, and other series of products. Langshi is one of the top ten national heavy metal testing enterprises and a supplier of national water station construction equipment. Its products are widely used in water quality monitoring fields such as pollution sources, surface water, and on-site emergency response. It provides accurate, reliable, and stable monitoring equipment and services for over 1500 environmental monitoring stations, more than 2000 large and medium-sized enterprises, and more than 100 universities and research institutes. Langshi's entire product line has independent intellectual property rights, and has undertaken multiple national 863 science and technology projects and Shenzhen science and technology development projects, successfully passing inspections. It has participated in the formulation of multiple national standards, industry standards of the General Administration of Quality Supervision, Inspection and Quarantine, and local standards in Guangdong Province, providing water quality and safety monitoring equipment for the 16th Guangzhou Asian Games, the 26th Shenzhen Summer Universiade, and the 2nd Nanjing Youth Olympic Games. Langshi headquarters is located in the High tech Industrial Park of Nanshan District, Shenzhen. It is a national and Shenzhen high-tech enterprise, a national and Shenzhen double soft certification enterprise, a national independent innovation enterprise, and a provincial-level enterprise science and technology special envoy stationed unit. The company's annual R&D investment accounts for 40% of its total sales revenue, and its technical team accounts for 60% of its total workforce. It has obtained over 100 invention patents, utility model patents, and software copyrights, and its products have been awarded honors and qualifications by national authoritative institutions multiple times. Langshi always adheres to customer needs as the center, and through down-to-earth work and continuous innovation, provides customers with high-quality products and satisfactory services, becoming a strong supporter of customers' careers. For several years, Langshi has focused on the field of water quality monitoring and is committed to becoming an internationally renowned leader in water quality monitoring service solutions.