"They are rock solid. Many Norwegian Subsea MRUs have been running 24/7 inside Miros products for up to eight years without issue, producing real-time data every second."

"There’s no need for recalibration, significantly reducing our downtime."

"You get commercial-grade performance at a significantly reduced cost."

"The whole industry is welcoming these MRUs."


Dutch company Radac is committed to delivering the most advanced wave radar systems that focus on the task of providing accurate, localised wave and seastate data. To support the highest levels of accuracy and reliability, Motion Reference Units (MRUs) from Norwegian Subsea are used as standard in its WaveGuide radar systems. This has helped build an enviable reputation for quality in the offshore industry, with Radac’s systems widely recognised for enabling confident decision-making in diverse and dynamic marine environments.

As the maritime industry accelerates its journey towards smarter, more efficient digital operations, structural health monitoring systems are playing a central role in operational efficiency, safety and sustainability. These systems increasingly depend on real-time, high-fidelity data from Motion Reference Units (MRUs) to contextualise structural stresses with the vessel’s motion in a given sea state. This is especially important in meeting the evolving requirements of classification society SMART notations from bodies such as the American Bureau of Shipping (ABS) and DNV.

Helideck Motion Monitoring & Weather Data Systems (HMS) provide real-time motion and environmental data essential for flight planning and for pilots to remain in safe control during take off and landing from moving helidecks. The HMS depends on Motion Reference Units (MRU) installed directly on to the support structure that continuously measure the helideck’s movement. Leading HMS manufacturer ShoreConnection chooses MRUs built by Norwegian Subsea.

Ultrabeam, a specialist in hydrographic survey and underwater inspection, relies heavily on precise motion compensation to ensure accuracy in their 3D mapping projects. By integrating Norwegian Subsea’s compact, calibration-free Motion Reference Units (MRUs), Ultrabeam has significantly improved its survey data accuracy, while enjoying simplified integration, and enhanced operational efficiency in diverse surveying environments, from bridges, to offshore installations.

Motion Reference Units (MRUs) are crucial in bathymetric survey technology, providing precise motion compensation data to ensure reliable and accurate seafloor mapping. For users like Captain Sid Hynes, a seasoned mariner exploring Newfoundland’s shipwreck-rich waters, the Norwegian Subsea MRU has redefined what is possible, delivering exceptional performance even in incredibly challenging conditions.

Motion Reference Units (MRUs) are crucial in wave radar technology, providing precise measurements of platform motion to accurately separate true wave patterns from a vessel's movements, therefore ensuring reliable data for maritime operations. However, before leading wave radar manufacturer Miros started working with Norwegian Subsea in 2016, it could be said that the MRU market was holding their potential back.

The NORSUB MRU 6000 Marine is installed onboard the passenger ferry M/F Teistin to monitor the effect of a wavefoil on ship motions. The wavefoil is a retractable bow foil that reduces vessel pitch motion and fuel consumption.