3DM-CX5-253DM-CX5-25 - 38.0 mm x 24.0 mm x 9.7 mm3DM-CX5-25 - Micro DB9 Samtec FTSH Series Connector3DM-CX5-25 - 13.0 grams3DM-CX5-25 - With Packaging
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Attitude and Heading Reference System (AHRS)

Product Status
The MicroStrain 3DM®CX5-AHRS is the smallest and lightest industrial AHRS with an Adaptive Kalman Filter available. It features a fully calibrated and temperature compensated triaxial accelerometer, gyroscope, and magnetometer to achieve the optimum combination of measurement qualities under all dynamic conditions. The dual on-board processors run an exclusive Auto-Adaptive Extended Kalman Filter (EKF) for outstanding dynamic attitude estimates, making it ideal for a wide range of applications, including platform stabilization, robotics, and vehicle health and usage monitoring.

The CX product line has all the same features of the GX series in a cost-effective system-integrator friendly package designed for volume production.
Features & Benefits

Best in Class Performance

  • Bias tracking, error estimation, threshold flags, and adaptive noise modeling allow for fine tuning to conditions in each application
  • l Accelerometer noise as low as 25 ug/√Hz
  • Smallest and lightest industrial AHRS with Adaptive Kalman Filter available
  • Triaxial accelerometer, gyroscope, magnetometer, temperature sensors achieve the optimal combination of measurement qualities
  • Dual on-board processors run a new Auto-Adaptive Extended Kalman Filter (EKF) for outstanding dynamic attitude estimates

Ease of Use

  • Automatic magnetometer calibration and anomaly rejection eliminates the need for field calibration
  • Automatically compensates for vehicle noise and vibration
  • Easy integration via comprehensive and fully backwardscompatible communication protocol
  • Common protocol between 3DM-GX3, GX4, RQ1, GQ4, and GX5 inertial sensor families for easy migration

Cost Effective

  • Out-of-the box solution reduces development time
  • Volume discounts


  • High Performance Accelerometer
    • 25 µg/√Hz (8g option)
    • 80 µg/√Hz (20g option)
  • Super-stable Gyro
    • 8 dph in-run bias (-40 to +85°C)
    • Offset temperature hysteresis 0.05°/s
    • ARW 0.3°/√hr
  • Pitch-roll static/dynamic accuracy ±0.25°/0.4°


  • IMU sampling rate up to 1000Hz
  • Auto-adaptive EKF output rate up to 500Hz
  • Independently configurable IMU and EKF outputs
  • Forward compatible MIP Protocol optimizes bandwidth
  • SensorConnect software for configuration, control, display, and logging


  • CNC Anodized Aluminum
  • Precision alignment features
  • Highly compact and low profile
    • 38.0 mm x 24.0 mm x 10.7 mm
    • 12.0 grams
  • USB and TTL UART interface (up to 921600 BAUD)
  • –40 to +85 °C operating temperature range
Product Taxonomy
MicroStrain 3DM-CX5-25
  • Unmanned vehicle navigation
  • Platform stabilization, artificial horizon
  • Health and usage monitoring of vehicles
The LORD Sensing 3DM- CX5 family of high- performing, industrial-grade inertial sensors provides a wide range of triaxial inertial measurements and computed attitude and navigation solutions
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