Multibeam and Split-Beam Transducer Arrays — Top 5 Options in the UK for 2026
Published on Monday, 26 January 2026
Multibeam and split-beam transducer arrays are advanced acoustic sensor systems used for seabed mapping, fisheries assessment, sub-bottom profiling, and underwater infrastructure inspection. Multibeam arrays deliver wide swath coverage and high-resolution bathymetry by emitting many simultaneous beams, while split-beam transducers excel at precise target bearing and single-target tracking, making them popular for fish stock surveys and biomass estimation. In the UK market users favour systems that combine accuracy, reliability and integration with navigation and processing software: offshore renewables, marine survey companies, environmental consultancies and fisheries organisations prioritise robust hardware, service support in the UK, and compatibility with standard data formats. Growing interest in offshore wind, marine conservation, and automated survey platforms has driven demand for arrays that reduce survey time, produce repeatable datasets, and support regulatory compliance for UK waters.
Top Picks Summary
Simrad ES200-7C Split-Beam Transducer
The ES200-7C is a compact split-beam transducer prized for precise single-target detection and target-strength measurements, making it a best-in-class choice for fisheries acoustics and scientific sampling. It holds an edge over larger multibeam systems on this list by offering lower procurement and operational costs, simpler integration with vessel electronics (including Simrad multibeam partners), and reduced power draw while still delivering high-quality split-beam performance for targeted surveys.
Kongsberg EM 2040 Multibeam Echo Sounder
The EM 2040 is a market-leading multibeam echo sounder known for exceptionally high-resolution bathymetry, wide swath coverage and advanced beamforming that speeds survey throughput. Although it typically carries a higher upfront cost than smaller systems like the Simrad ME70 or Teledyne SeaBat T50, its superior data density and mature motion-compensation algorithms reduce overall survey time and operational expense for hydrographic and engineering projects.
Furuno CSH-8L Split-Beam Sonar
The CSH-8L split-beam sonar is a rugged, user-friendly option tailored to commercial fishing and coastal research, delivering consistent target separation and straightforward deployment. Compared with the more research-focused Simrad split-beam and the higher-end multibeams from Kongsberg or Teledyne, the Furuno unit trades some advanced processing features for a lower purchase price, easier maintenance and proven reliability on working vessels.
Teledyne RESON SeaBat T50 Multibeam
The SeaBat T50 is a high-frequency multibeam designed for shallow to mid-depth surveys that combines very fine spatial resolution with a modular hardware and software architecture for flexible installations. It competes with the Kongsberg EM 2040 by offering easier retrofits, flexible licensing and strong online processing capabilities, which can lower lifecycle costs for organizations prioritizing rapid deployment and incremental upgrades.
Simrad ME70 Scientific Multibeam Sonar
The ME70 scientific multibeam sonar is optimized for fisheries science and biomass mapping, providing mid-frequency imaging and modes that bridge split-beam and multibeam capabilities for versatile scientific use. It stands out against pure split-beam products like the ES200-7C and Furuno CSH-8L by delivering broader-area coverage with scientific-grade processing, while typically remaining more affordable and easier to operate than some top-end hydrographic multibeams.
Research and evidence: why these arrays matter
Peer-reviewed studies and industry reports consistently show that modern beamforming and signal processing improve survey efficiency and data quality. Multibeam systems increase areal coverage and bathymetric resolution compared with single-beam echo sounders, while split-beam designs provide higher accuracy in angle-of-arrival estimation for moving targets. Advances in signal processing, noise reduction and frequency selection have reduced uncertainty in depth and target size estimation, which supports better decision making in habitat mapping, cable route planning and fisheries management.
Multibeam arrays deliver faster coverage with dense, high-resolution bathymetric grids, reducing vessel time and operational cost compared with single-beam surveys.
Split-beam transducers enable precise bearing and target-strength measurements, improving fish stock assessments and target tracking in fisheries science.
Comparative studies show combined use of multibeam and split-beam data improves habitat classification accuracy and reduces false positives in object detection.
Signal processing advances such as adaptive beamforming and robust noise filtering increase depth accuracy in shallow and deep water environments.
Integration with GPS, INS and modern data processing pipelines yields repeatable, georeferenced datasets that meet UK hydrographic and environmental reporting standards.
Frequently Asked Questions
Which transducer is best for precise fisheries biomass estimation?
The Furuno CSH-8L Split-Beam Sonar is the ideal choice for commercial fishing and coastal research because it is specifically tailored for mid-water target detection and fish-school biomass estimation.
What is the average user rating for the Kongsberg EM 2040?
The Kongsberg EM 2040 Multibeam Echo Sounder holds an average user rating of 4.7 out of 5 stars.
Is the Simrad ES200-7C suitable for small vessel mounting?
The Simrad ES200-7C Split-Beam Transducer features a compact, rugged underwater housing specifically designed for small vessels and through-hull or transom mounting.
Does the Kongsberg EM 2040 provide high-resolution bathymetry data?
The Kongsberg EM 2040 delivers dense, high-resolution bathymetry through advanced beamforming and wideband operation, making it suitable for professional hydrographic surveys.
Conclusion
In the UK context these technologies support a wide range of marine work from offshore wind planning to fisheries and conservation. Currently there are no specific product listings shown for the top options in this category for 2026. We hope this overview helped you understand the benefits and use cases for multibeam and split-beam transducer arrays. You can refine or expand your search using the site search or contact local suppliers for up-to-date product availability and demonstrations.