Founded in 2004, TIANDUNBJ TECHNOLOGY CO., LTD. is a high-tech enterprise that integrates the research and development and production of hydrophones, seismometers and acoustic releasers based on the OBS technology of seafloor seismometers. SinOBS seafloor seismometers have the characteristics of low power consumption, low cost, high integration and high recovery rate. At present, they have realized independent production. The company owns the intellectual property rights of its design, research and development, production and other links. It is at the international leading level in terms of recording time, working water depth, sensor diversity and amplitude-frequency response. It is mainly used in the fields of deep earth structure research, marine oil and gas resource exploration and marine earthquake monitoring.

TIANDUNBJ's MET electrochemical sensing technology is applied to seismometers and hydrophones. It has good performance in structure, performance and stability, and has been widely recognized by users. It is mainly used in the fields of hydroacoustic physics and hydroacoustic engineering. The application scenarios include pipeline leakage detection, marine geological exploration, marine noise monitoring, hydroacoustic target identification and other fields.

TIANDUNBJ's acoustic releaser has a maximum communication distance of up to 10km and is used in full sea depth environment. Advanced acoustic communication algorithms and stable hardware support are important guarantees for the high recovery rate (98%) of acoustic releasers. In addition, the acoustic releaser adopts a highly modular design, which can provide users with different stages of products from control motherboard to complete products to meet the application needs of users and realize the smooth recovery of submarine submersible platforms.

In addition, for traditional customers, TIANDUNBJ has developed and designed various types of piezoelectric hydrophones, and also provides customized products such as various submersible platforms to meet the needs of different mounting methods and different array arrangements of various sensors.