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Hydrographic Survey Equipment: Multibeam Echo Sounders, Side Scan Sonars, Sound Velocity Sensors & Profilers China
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Hydro-Tech

Hydrographic Survey Equipment: Multibeam Echo Sounders, Side Scan Sonars, Sound Velocity Sensors & Profilers

Hydro-Tech Marine is a leading developer of underwater and hydrographic survey equipment for USVs (uncrewed surface vessels) and unmanned underwater vehicles such as ROVs (remotely operated vehicles) and AUVs (autonomous underwater vehicles).

We are experts in acoustic and sonar technology and in addition to our off-the-shelf products, we can leverage our strong research and development capabilities to create bespoke underwater surveying solutions to meet unique and demanding requirements.

MS400U Multibeam Echo Sounder

Compact multibeam echo sounder for USVs

Multibeam Echo SounderThe MS400U is a compact, lightweight and low-power multi-beam echo sounder that has been specially designed for small unmanned platforms such as USVs.

Featuring an integrated surface sound velocity profiler and AHRS (attitude & heading reference system), it is ideal for surveying bodies of water such as lakes, reservoirs and rivers.

The system has been specifically optimized to deal with large changes in attitudes experienced by smaller unmanned vessels, utilizing 512 acoustic beams with sophisticated dynamically-focused beamforming technology. The MS400U meets the International Hydrographic Organization (IHO) accuracy standards for hydrographic surveys.

ES Series Side Scan Sonar

Embedded side scan sonar for USVs, ROVs & AUVs

ROV Side Scan Sonar Systems

The ES Series of embedded side scan sonars features frequency options of 450 kHz, 900kHz, or both. Utilizing self-adapting wave adjustment technology and advanced broadband signal processing, the system is ideal for a variety of high-definition underwater imaging applications.

The lightweight and compact sonars can be connected via Ethernet or RS232 serial, and also provide 8 programmable TTL synchronous control outputs, solving common issues with acoustic interference and synchronization control.

hydrographic survey equipment

Learn more: ES Series Side Scan Sonar Systems

SVP1500 Sound Velocity Profiler

Sound velocity profiler for underwater mapping & surveying

SVP Sensor for underwater surveyingThe SVP1500 sound velocity profiler provides accurate speed of sound information and depth measurement for a wide range of applications including underwater mapping and surveying and marine construction. With a high sampling rate and advanced time-of-flight measurement technology, it can measure sound velocity at accuracies of 0.05m/s, and depth at an industry-leading precision of 0.15m.Sound Velocity Profiler SVP Sensor

The lightweight and corrosion-resistant SVP sensor includes a built-in high-performance lithium battery that provides a continuous working life of more than 8 hours, and a storage capacity of 16GB for logging over 4000 hours of data.

Learn more: SVP1500 Sound Velocity Profiler (SVP)

SVS1500 Sound Velocity Sensor

Sound velocity sensor with advanced time-of-flight measurement

sound velocity sensorsThe SVS1500 is a sound velocity sensor that utilizes advanced time-of-flight measurement technology and digital signal processing to provide measurements with accuracies down to 0.05m/s. With an output rate of up to 30 Hz, the sensor can quickly respond to sudden and rapid changes in water current and sound velocity.

The lightweight and compact sensor is constructed from advanced materials with ultra-low coefficient of thermal expansion, ensuring high performance and minimal deformation while maintaining excellent precision in challenging underwater environments.

Learn more: SVS1500 Sound Velocity Sensor

Applications

hydrographic survey instruments

Hydrographic Surveying

Combined with USVs and UUVs, our hydrographic survey instruments are ideal for a wide range of use cases, including reservoir dredging, oil and gas, marine construction, and more.

hydro survey

Maintenance & Inspection

Our underwater survey solutions enable easier, safer and more cost-effective maintenance and inspection of critical infrastructure and facilities such as bridges, docks, wind farms and offshore energy facilities.

underwater surveying

Search & Rescue and Disaster Response

Our high-accuracy side scan sonars can profile shipwrecks and locate people as well as small objects of interest, producing detailed images of underwater environments even in low-visibility conditions.

Products

MS8240 Multibeam Echo Sounder

Multifunction All in One Multibeam Sonar

MS400C

All-in-one multibeam echo sounder for compact USVs

SS3060/SS4090 Dual Frequency Side Scan Sonar

High Resolution & Wide Range Side Scan Sonar for Underwater Inspection

SS900 Small Side Scan Sonar

High Resolution Side Scan Sonar for Emergency and Rescue

MS400P Portable Multibeam Echo Sounder

400kHz Multibeam Echo Sounder for Underwater Bathymetric Survey

MS8200 Oceanographic Multibeam Echo Sounder

200kHz Multibeam Echo Sounder for up to 500m Depth Mapping and Survey

MS400U All-in-One Multibeam Echo Sounder

Multibeam Built in SVS & IMU + GNSS for USV Hydrographic Survey

SVP1500 Sound Velocity Profiler

High Accuracy of 0.05 m/s for Underwater Exploration

SVS1500 Sound Velocity Sensor

Real-Time Sound Velocity Sensor for USV & ROV Underwater Survey

ES Series Embedded Side Scan Sonar

Multi-Frequency-Optional Side Scan Sonar for USVs, ROVs & AUVs

Articles

Latest
Compact All-in-One Multibeam Echosounder for USVs

Hydro-Tech has launched a fully integrated multibeam echosounder engineered for USVs, combining critical survey components into one compact, efficient, plug-and-play system

Apr 07, 2025
Ultra-High Resolution 3D Imaging System Released

Hydro-Tech's new product, the MS8240, is an ultra-high resolution adjustable 3D Multibeam Echo Sounder imaging system ranging from single frequency to multi-frequency

Mar 28, 2025
Product Spotlight: Hydro-Tech Marine’s Proven MS400U Multibeam Echo Sounder

Hydro-Tech Marine highlights the trusted and reliable MS400U, a multibeam echo sounder optimized for small USVs and unmanned underwater platforms

Feb 05, 2025
Enhanced Surveying Efficiency with Hydro-Tech’s Dual-Head Multibeam Echosounder

Learn more about the MS8200-IDH Dual-Head Multibeam Echo Sounder, a cost-effective solution for oceanographic and bathymetric surveys, in this case study from Hydro-Tech

Aug 08, 2024
High Efficiency Unmanned Reservoir Survey

Hydro-Tech has released a paper outlining the process of efficiently surveying a 830 square kilometer reservoir in China using the MS400U multibeam echosounder and a small USV

Jun 25, 2024
Bathymetric Survey with a USV & Multibeam EchoSounder

Hydro-Tech have released a paper outlining the company’s bathymetric survey of the Yellow River, utilizing their MS400U multi beam echo sounder and an unmanned surface vessel

Jun 13, 2024
3D Data Acquisition for Reservoir Completed with Multibeam Echosounder

In 2017, Hydro-Tech used its MS400 multibeam echosounder to carry out precise measurements of the evolution of underwater scour in key areas of the Longyangxia Reservoir, retrieving accurate, underwater, three-dimensional terrain data

Apr 11, 2024
USV Multi-beam Echosounder Used in Underwater Survey

Hydro-Tech has released a case study discussing the advantages of using mounted multi-beam echosounders on USVs in underwater topographic surveys

Apr 02, 2024
Multibeam Echosounder Technology for Unmanned Surface Vehicles

Hydro-Tech introduces a small size, high accuracy, and low power consumption multibeam echosounder suitable for unmanned surface vehicles (USVs), which could survey the area that manned hydrographic ships cannot reach

Mar 21, 2024
Underwater and Hydrographic Survey Equipment for USVs & UUVs

Hydro-Tech Marine’s lightweight and compact solutions include multibeam echosounders, side scan sonars, and sound velocity sensors and profilers

Oct 02, 2023
Regional Offices & Locations
Beijing Hydro-Tech Marine Technology Co., Ltd. China Building 5, No 33, Jingsheng South 2nd Street, Tongzhou Dist., Beijing +86-10-5727 5310 Contact Website
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