Inertial Labs MRU-B2S Basic

Inertial Labs MRU-B2S Basic

The MRU-B2S Basic from Inertial Labs is a professional motion reference unit (MRU) that contains 3 solid state, ultra-high performance MEMS accelerometers, magnetometers, MEMS gyroscopes and barometric sensors.



The MRU-B2S Basic Subsea MEMS MRU from Inertial Labs was developed to meet requirements for subsea hydrography and submersible vessel orientation compensation applications. This MRU is an enhanced, high-performance strapdown motion sensor, that determines heave, sway, surge, pitch, roll and heading (optional) for any device on which it is mounted.

The MRU-B2S utilizes 3-axis solid-state precision accelerometers, magnetometers, gyroscopes and barometric sensors to provide accurate heave, sway and surge of the device under measure.

Integration of these very low noise gyroscopes allow for output which provides high frequency, real-time rotation measurement for vessels, ships, helidecks, ROV, marine antennas or cranes over all three rotational axis.

The new generation of Inertial Labs MRUs are an ideal solution for demanding applications. Their electronic nature solves the problems associated with expensive mechanical gyro solutions, as well as fiber optic gyro (FOG) technology. These high-end MRUs feature MEMS gyros that lead the sector in both accuracy and reliability.


  • Kongsberg/Seatex, Teledyne and SMC data formats
  • State-of-the-art algorithms for survey, vessels, ships, active heave compensators, cranes, helidecks, ROV, AUV, DPS, buoys, echo sounders, offshore platforms, etc.
  • 5% or 5 cm RMS (whichever is greater) heave accuracy
  • 0.02 deg RMS pitch & roll dynamic accuracy
  • NMEA 0183, TSS1 output data formats
  • HYPACK software compatibility
  • Depth Rating 200 m
  • Affordable price

Technical Specifications

Heave:5% / 5 cm (RMS)
Pitch & Roll:0.02 deg (RMS)
Heading:External Magnetic Compass (optional)
Size:120 mm x 50 mm x 53 mm
Weight:220 g
Supply Voltage:9 – 36 VDC
Power Consumption:1 W
Operating Temperature:-40 °C to +70 °C
Storage Temperature:-50 °C to +85 °C
Vibration:IEC 60945/EN 60945
Enclosure:Subsea (200 m)


The MRU-B2S Basic MEMS MRU from Inertial Labs is available through Canal Geomatics. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.

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