Discover the next generation of Xsens motion capture

Xsens Sirius: Accurate inertial data even in the most challenging environments

When you need inertial sensing in harsh conditions, Xsens Sirius brings you high-accuracy motion data in an IP68 MIL-STD housing, shock and vibration resistance and magnetic immunity.

Overview

Achieving autonomy in harsh environments requires more than just basic inertial sensing. It demands a high level of accuracy, reliability, and robustness. You need sensors that can perform in unpredictable terrain, enduring extreme temperatures, and operating flawlessly under intense vibration and shock. That's where the Xsens Sirius comes in. It's purpose-built to deliver consistent performance, providing the critical foundation for autonomous systems operating in demanding conditions.

For marine applications, the Xsens Avior AHRS/MRU also brings you real-time Heave output for Active Heave Compensation.

Robust MIL-STD IP68 housing

Resistant to magnetic interferences, shock & vibration

Flexible interfaces and protocols: RS232, RS422, CAN

Roll/Pitch Accuracy – 0.2° RMS

Yaw/Heading Accuracy – 1° RMS

Real time Heave output: <5 cm accuracy for 29 seconds

A&M - Photo Xsens Sirius AHRS Workshop-Web

Engineered to overcome harsh conditions

Accurate orientation data, supporting navigation everywhere, thanks to the dual-processor design.

Explore all models in our Product Selector

Accurate measurements even in extreme vibration conditions, supported by analog filtering.

MIL-standard IP68 housing, resistant temperature extremes, humidity, salt spray, sand & dust, shock & vibration, and electromagnetic interference.

Exceptional resistance against magnetic disturbances thanks to advanced magnetic models.

Compact plug-and-play, comprehensive software suite, user-friendly SDK, and seamless integration. Backed by a strong partner network (NVIDIA, HESAI, ROS, Matlab, and more).

IMU, VRU and AHRS

Xsens Sirius IMU

High-performance Strapdown Integration (SDI) delivering accurate, calibrated, inertial sensor data, including angular velocity, acceleration, and magnetic field data.

More about the Xsens Sirius IMU

Xsens Sirius VRU

Reliable 3D orientation tracking achieving exceptional accuracy levels with high-quality calibrated roll, pitch, and (unreferenced) yaw data.

More about the Xsens Sirius VRU

Xsens Sirius AHRS & MRU

Unrivaled heading accuracy with drift-free roll, pitch, and true-north-referenced yaw, providing heading accuracy <1° RMS. Real time heave output with a <5cm accuracy for 29 seconds.

More about the Xsens Sirius AHRS / MRU

Overview of the complete portfolio and functionalities

Specifications

Sensor fusion performance

Accelerometer Calibrated
Gyroscope Calibrated
Strapdown Integration(SDI) Yes

Sensing components

Gyroscope
Standard full range ± 300 º/s
In-run bias stability 7 º/h
Bandwidth (-3dB) 400 Hz
Noise density 0.003 º/s/√Hz
Accelerometer
Standard full range: ± 8 g
In-run bias stability 15 μg
Bandwidth (-3dB): 470 Hz
Noise density: 15 μg/√Hz
Magnetometer
Standard full range ± 8 G
Total RMS noise 1 mG
Non-linearity 0.2%
Resolution 0.25 mG

System specifications

Mechanical
IP-rating (equivalent) IP68
Operating temperature -40 to +85 ºC
Casing material Aluminum
Mounting orientation No restriction, full 360º in all axes
Connector Main: ODU (AMC HD 12 pins)
Weight 78.5 grams
Certifications CE, FCC, RoHS, MIL-STD-202,ITAR free
Electrical
Input voltage 4.5 to 24 V
Power consumption (typ.) <1W
Interfaces / IO
Interfaces RS232, RS422, CAN
Protocols Xbus, ASCII (NMEA), CAN
Clock drift 10 ppm (or external)
Output frequency Up to 2kHz, 400Hz SDI
Built-in-self test Gyr, Acc, Mag

Sensor fusion performance

Roll, Pitch 0.2 º RMS
Yaw/Heading Unreferenced, low drift
Strapdown Integration(SDI) Yes

Sensing components

Gyroscope
Standard full range ± 300 º/s
In-run bias stability 7 º/h
Bandwidth (-3dB) 400 Hz
Noise density 0.003 º/s/√Hz
Accelerometer
Standard full range: ± 8 g
In-run bias stability 15 μg
Bandwidth (-3dB): 470 Hz
Noise density: 15 μg/√Hz
Magnetometer
Standard full range ± 8 G
Total RMS noise 1 mG
Non-linearity 0.2%
Resolution 0.25 mG

System specifications

Mechanical
IP-rating (equivalent) IP68
Operating temperature -40 to +85 ºC
Casing material Aluminum
Mounting orientation No restriction, full 360º in all axes
Dimensions 56.50 x 40.90 x 24.75 mm
Connector Main: ODU (AMC HD 12 pins)
Weight 78.5 grams
Certifications CE, FCC, RoHS, MIL-STD-202,ITAR free
Electrical
Input voltage 4.5 to 24 V
Power consumption (typ.) <1W
Interfaces / IO
Interfaces RS232, RS422, CAN
Protocols Xbus, ASCII (NMEA), CAN
Clock drift 10 ppm (or external)
Output frequency Up to 2kHz, 400Hz SDI
Built-in-self test Gyr, Acc, Mag

Sensor fusion performance

Roll, Pitch 0.2 º RMS
Yaw/Heading 1 º RMS
Strapdown Integration(SDI) Yes

Sensing components

Gyroscope
Standard full range ± 300 º/s
In-run bias stability 7 º/h
Bandwidth (-3dB) 400 Hz
Noise density 0.003 º/s/√Hz
Accelerometer
Standard full range: ± 8 g
In-run bias stability 15 μg
Bandwidth (-3dB): 470 Hz
Noise density: 15 μg/√Hz
Magnetometer
Standard full range ± 8 G
Total RMS noise 1 mG
Non-linearity 0.2%
Resolution 0.25 mG

System specifications

Mechanical
IP-rating (equivalent) IP68
Operating temperature -40 to +85 ºC
Casing material Aluminum
Mounting orientation No restriction, full 360º in all axes
Dimensions 56.50 x 40.90 x 24.75 mm
Connector Main: ODU (AMC HD 12 pins)
Weight 78.5 grams
Certifications CE, FCC, RoHS, MIL-STD-202,ITAR free
Electrical
Input voltage 4.5 to 24 V
Power consumption (typ.) <1W
Interfaces / IO
Interfaces RS232, RS422, CAN
Protocols Xbus, ASCII (NMEA), CAN
Clock drift 10 ppm (or external)
Output frequency Up to 2kHz, 400Hz SDI
Built-in-self test Gyr, Acc, Mag

Download detailed datasheets: Xsens Sirius IMU | Xsens Sirius VRU | Xsens Sirius AHRS

Ideal for demanding applications

Marine

Achieve precise navigation and stabilization for surface (buoys, vessels, platforms) and sub-surface robotics (ROVs and AUVs). Obtain reliable heading and roll/pitch data and support for bathymetry mapping.

Mobile robotics

Enable precise navigation for both indoor (AMRs/AGVs) and outdoor mobile robots operating in challenging environments.

Precision agriculture

Deliver accurate 3D orientation data for autonomous agriculture machinery and smaller mobile robotics to enhance navigation and control.

3D mapping and surveying

Support high-fidelity data capture and georeferencing for aerial, terrestrial, and subsea bathymetry mapping. Create accurate maps and 3D models using Sonar, LIDAR, and camera systems.

Learn about the typical applications for Xsens Inertial Sensor Modules

Ready to test the Xsens Sirius?

The Xsens Sirius is ready to be tested with a complete Development Kit, so you can quickly evaluate if it suits your inertial data needs.

Explore the Xsens Portfolio

Is the Xsens Sirius not what you are looking for?

We have other product series that could be a great fit for your needs:

MTi 1-Series: A unique sensor module - ultracompact (12 x 12 mm) size with onboard sensor fusion.
MTi 600-Series: Our most flexible and complete series - from simple IMU to GNSS/INS + RTK, available in both OEM and Rugged form factors.
Xsens Avior Series: Premium OEM solution - high-performance for demanding applications, in a low SwaP-C package.
Xsens Vision Navigator: Dual RTK GNSS, internal IMU, camera, and visual-inertial odometry technology - for GNSS-denied environments.

Explore our portfolio of inertial sensor modules

Xsens Sirius: Accurate inertial data even in the most challenging environments

Overview

Engineered to overcome harsh conditions

Robust accuracy

Vibration- and shock-rejecting signal pipeline

Rugged and reliable

Magnetic immunity

Easy-to-integrate