Qingdao Daowan Technology Co., Ltd. focuses on the independent technology research and development, product manufacturing and technical services of high-precision temperature and salinity instruments, especially the research and development of products suitable for extreme water environments (deep sea, polar regions). 

Since the establishment of Daowan, it has completely used its own funds for independent research and development, and gradually mastered all the core technologies of high-precision temperature and salt depth meters, filling the gap in domestic temperature and salt depth meter technology, allowing Chinese users and even the world users to have more and better Good choice. 

All the core components of Daowan Thermometer are independently developed, produced or purchased domestically. The localization rate of the whole machine is 99%, which completely breaks through the restrictions of foreign technology blockades, and the key technologies are independently controllable. At present, Daowan has sold hundreds (sets) of products accumulatively. Customers include Ocean University of China, 715 Research Institute of China Shipbuilding Industry Corporation, 722 Research Institute of China Shipbuilding Industry Corporation, Institute of Acoustics, Chinese Academy of Sciences, National Marine Environment Monitoring Center of the Ministry of Ecology and Environment, Harbin Well-known marine research institutions such as the University of Engineering, the South China Sea Institute of Oceanography of the Chinese Academy of Sciences, and the First Institute of Oceanography of the Ministry of Natural Resources have saved millions in scientific research funds for domestic researchers and government departments. 

It is the original intention and belief of Daowan to be the Chinese people's own high-precision temperature and salt depth meter. Daowan never forgets his original intention and moves forward. At present, Daowan Wenyanshenyi has been recognized by more and more domestic users. With the joint efforts of all colleagues in the company, it will definitely break the foreign monopoly, create a national brand, and make domestic users and even international users fall in love with Chinese brands. Ocean Instruments!