Kongsberg EM Series Medium to Deep Water Multibeam Echo Sounder Systems

The Kongsberg EM medium to deep water series is the industry standard for high-resolution seabed mapping on continental slopes and at full ocean depths. This series is based on a modular design, utilizing advanced sector transmission and real-time beam focusing technology to provide mapping data that exceeds IHO Special Order standards, with rich detail and a very high signal-to-noise ratio, across depth ranges from a few hundred meters to over ten thousand meters.

This product line covers the complete spectrum of applications from medium-deep to full ocean depths, forming the core equipment of professional oceanographic survey vessels:

EM 712 — High to very-high resolution medium-depth multibeam (40–100 kHz, 3600m max). Beamwidth options: 0.25°×0.5° to 2°×2°. USV and export-friendly RD versions available—balancing performance and flexibility.

EM 304 MKII — Next-gen high-resolution full-ocean-depth multibeam (20–32 kHz). Modular, customizable Tx/Rx array with beamwidths from 0.3°×0.5° to 4°×4°. Unparalleled data quality for ridge mapping to slope surveys.

EM 124 — 12 kHz ultra-wide swath full-ocean-depth multibeam. >40 km coverage width—ideal for efficient ocean mapping and large-scale terrain modeling with full-depth resolution.