Xiamen Lawlink Development Co., Ltd. settled in the beautiful coastal city of Xiamen in 2002. Longlide is committed to exploring and innovating in the field of environmental technology. The company has passed ISO9001 quality management system certification and ISO14001 environmental management system certification. It is a high-tech enterprise specializing in the research and development, production, sales, and service of environmental monitoring instruments and system integration. After years of development, we have gradually grown from a single agent of water quality analysis instruments to a diversified enterprise. Not only does it provide advanced water quality analysis and monitoring instruments to users, but it also undertakes various automatic monitoring projects for surface water, drinking water sources, pollution source emissions, etc. across the country. By comprehensively utilizing modern system integration, automatic control, computer software, information communication and other high-tech, it has developed a real-time monitoring water quality automatic monitoring system with advanced domestic level, providing important technical support for environmental protection departments to effectively monitor water source environmental change factors and control environmental pollution. Longlide has a high-quality sales team and technical services. Since 2002, the company has provided hundreds of sets of surface water quality automatic monitoring systems, pollution source automatic monitoring systems, etc. for national and local government environmental protection departments. It has built a comprehensive management platform for environmental automatic monitoring systems and undertaken technical services and operation maintenance tasks for multiple water quality automatic monitoring system projects, providing reliable guarantees for users at all levels to obtain first-hand monitoring data in a timely manner. In addition to its Xiamen headquarters, Longlide has also set up permanent offices and technical service centers in Hong Kong, Beijing, Nanjing, Jinan, Shenyang and other places, providing convenient conditions for achieving localized services. Longlide Company can provide users with: ① long-term provision of various environmentally friendly equipment from world-renowned brands; ② Provide pre-sales and after-sales technical support for the installation, debugging, maintenance, and upkeep of instruments and equipment; ③ Integration of software and environmental information system, environmental monitoring automatic station system; ④ Undertake the construction and operation services of water quality automatic monitoring systems and pollution source monitoring systems in various regions; ⑤ Provide various water quality monitoring solutions for universities, research institutions, sewage treatment plants, etc. The instruments provided are portable/laboratory: PH meter, acidity meter, ORP, Dissolved oxygen, conductivity, multi parameter water quality analyzer, BOD, BOD incubator, COD, COD digester, photometer, turbidity, colony counter online instrument: pH/ORP, Temperature, dissolved oxygen, conductivity, COD,BOD,TOC,DOC,SAC, Turbidity and suspended solids TSS, salinity, ammonia nitrogen NH4-N, nitrate nitrogen NO3-N, nitrite nitrogen NO2-N, phosphate, total phosphorus, total nitrogen, water quality sampler, sample preprocessor, electrode, flow meter, drinking water monitoring system, total phenols, heavy metals, residual chlorine, chlorine dioxide, chlorophyll, blue-green algae, permanganate index, microbial pathogens