Tianjin Blue Hole Instrument Co., Ltd

We parallel world-class equipment distribution with in-house R&D. As partners to leading brands such as Kongsberg, AML, and Marine Magnetics, we also co-develop our own products—such as the Sagsea Series fiber optic INS and timed release systems—with top research institutes, delivering solutions tailored to the Chinese market.

Our core technical team brings nearly 20 years of industry experience, having played key roles in equipment evaluation, installation, and commissioning for major research vessels operated by the Ministry of Natural Resources, universities, and CNOOC subsidiaries. This depth of expertise ensures field-proven solutions.

Equipment maintenance:

We offer in-country repair for critical equipment—no need to ship back to overseas manufacturers. By mastering core technologies, we provide faster turnaround, lower costs, and eliminate return-to-factory risks. Our dedicated field test base in Hebei, complete with a test vessel, enables on-site validation and serves as a real-world training ground for your team.

Equipment rental:

We offer flexible rental solutions—full systems, single items, or custom packages—featuring multibeam, side scan sonar, sub-bottom profilers, INS, magnetometers, and current profilers from leading global brands.

Technical services:

We provide end-to-end support, from training to full-scale surveys, covering underwater topography mapping, structural scanning, target search, and hydrological monitoring.