Orientus is a miniature IMU and AHRS that provides accurate orientation under the most demanding conditions.

Roll & Pitch
0.2 °
Heading (Magnetic)
0.8 °
Bias Instability
3 °/hr
Update Rate
1000 Hz
Orientus IMU AHRS

Orientus combines temperature-calibrated accelerometers, gyroscopes, and magnetometers with a sophisticated fusion algorithm to deliver accurate and reliable orientation. It is available in both OEM and rugged packages.



Orientus OEM v2

High-Performance MEMS

Orientus contains high-performance MEMS sensors that are put through Advanced Navigation’s intensive 8-hour temperature calibration process. This provides the highest accuracy possible from this sensor class and outputs consistent accuracy over the full temperature range from -40°C to 85°C.
Intensive Calibration

Automatic Magnetic Calibration

Orientus features fully automatic magnetic calibration that updates every time the unit moves and removes all requirements on a manual calibration process. This provides reliable accurate heading through changing environments.

Acceleration Compensation

Linear Acceleration Compensation

Orientus uses an innovative algorithm to compensate for linear accelerations. This allows Orientus to maintain accurate roll and pitch through short term linear accelerations that typically cause significant errors in competitors systems. For long term linear accelerations Orientus supports the addition of an external GNSS receiver for full acceleration compensation.

High Sampling Rate

High Update Rate

Orientus's internal filter runs at 1000Hz and data can also be output at this rate over high speed RS232. This allows for control of dynamically unstable platforms.

Trusted Reliability


Orientus has been designed from the ground up for mission critical control applications where reliability is very important. It is built on top of a safety oriented real time operating system and all software is designed and tested to safety standards with fault tolerance in mind. The hardware is designed and manufactured to mil standards.




Roll & Pitch Accuracy (Static)
0.2 °
Heading Accuracy (Static)
0.8 °
Roll & Pitch Accuracy (Dynamic)
0.6 °
Heading Accuracy (Dynamic)
1.0 °
Orientation Range
Internal Filter Rate
1000 Hz
Output Data Rate
Up to 1000 Hz
0.3 ms



±2 g • ±4 g • ±16 g
Bias Instability
20 ug
Initial Bias
< 5 mg
Initial Scaling Error
< 0.06 %
Scale Factor Stability
< 0.06 %
< 0.05 %
Cross-axis Alignment Error
< 0.05 °
Noise Density
100 ug/√Hz
400 Hz


±250 °/s • ±500 °/s • ±2000 °/s
Bias Instability
3 °/hr
Initial Bias
< 0.2 °/s
Initial Scaling Error
< 0.04 %
Scale Factor Stability
< 0.05 %
< 0.05 %
Cross-axis Alignment Error
< 0.05 °
Noise Density
0.004 °/s/√Hz
400 Hz


±2 G • ±4 G • ±8 G
Initial Scaling Error
< 0.07 %
Scale Factor Stability
< 0.09 %
< 0.08 %
Cross-axis Alignment Error
< 0.05 °
Noise Density
210 uG/√Hz
110 Hz


4800 to 1M baud
AN Packet Protocol, NMEA or TSS
Peripheral Interface
2x GPIO and Auxiliary RS232
GPIO Level
5 V
GPIO Functions
NMEA input/output • Novatel input • AN Packet Protocol input/output • Magnetometers disable • Set zero orientation • Packet trigger u-blox input • TSS output • Custom (contact us)


Operating Voltage
4 to 36 V
Input Protection
±60 V
Power Consumption
0.325 W
Operating Temperature
-40 °C to 85 °C
Environmental Protection (Enclosed)
IP67 / MIL-STD-810G
380,000 hrs
Shock Limit
2000 g
Dimensions (excluding tabs)
30 x 30 x 24 mm
Dimensions (including tabs)
30 x 40.6 x 24 mm
25 grams


28 Sep 2021 - V3.1
Reference Manual (PDF)
14 Nov 2023 - V1.6
3D Model
25 Feb 2015 - V1.0


Orientus Manager

Orientus Manager is the software provided for testing, configuration and logging with Orientus. Java 11 is required to run Orientus Manager v7.0 and later. Adoptium JRE 11 is the recommended Java installer. Please see the reference manual for more information.

9 Apr 2024 – V7.3

Orientus SDK

The Orientus SDK provides example source code for interfacing with Orientus through the AN Packet Protocol. The languages provided are C/C++, Java, and .Net C#.

09 Jan 2023 – V7.0

Orientus Firmware

The latest firmware for version 3.0 and later Orientus hardware. This can be loaded onto Orientus using the Orientus Manager software.

27 Jul 2021 – V5.6

Orientus Firmware

The latest firmware for pre-version 3.0 Orientus hardware. This can be loaded onto Orientus using the Orientus Manager software.

25 May 2018 – V1.5

The Latest News, Articles & More


Advancing Humanoid Robots: PAL Robotics Strides Forward with Orientus

26 March 2024

IHMC’s robotic exoskeleton strides towards the future with Orientus AHRS

7 October 2021

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