MicroStrain 3DM-CV7-AHRS Tactical Grade OEM IMU/AHRS

The MicroStrain 3DM-CV7 Inertial Measurement Unit (IMU) and Attitude Heading Reference System (AHRS) offers tactical grade performance in the smallest and lightest OEM package yet. Each 3DM-CV7 sensor is individually calibrated for optimal performance over a wide range of operating conditions.

Parker’s Auto-Adaptive Extended Kalman Filter has been designed from the ground up to deliver consistently reliable results in even the most challenging environments. Cutting-edge orientation algorithms, advanced internal time management, and a flexible event triggering system put the 3DM-CV7 in a league of its own when it comes to price versus performance.



  • Tactical grade gyro (1.5°/hr bias instability)
  • Fully calibrated over entire temperature range
  • Roll/pitch static accuracy: 0.25°, dynamic accuracy: 0.5°
  • Integrated magnetometer for absolute heading tracking


  • Onboard Extended Kalman Filter for attitude estimation
  • User-selectable accelerometer and gyroscope range
  • 1 KHz output data rate for all channels
  • Factory supported ROS1 and ROS2 driver
  • SensorConnect software for configuration, control, display, and logging
  • MSCL open source API for easy integration


  • Anodized aluminum mounting base
  • Precision alignment features
  • Compact and low profile
    • 38mm x 24mm x 8.6mm
    • 8.3 grams
    • 18% thinner than the 3DMCV5
    • 20% lighter than the 3DMCV5
  • USB and UART (TTL) interface
  • –40 to +85°C operating temperature range

Use Cases


Compact, state-of-the art inertial sensors with proven fifth generation high-performance industrial grade solid-state MEMS accelerometer and gyro inertial sensor technology.

Low-cost, compact size and full 360-degree measurement range about all axes

Full accuracy over the entire operational temperature range of -40°C to 85°

Auto-Adaptive Extended Kalman Filter for optimal dynamic accuracy and on-vehicle performance.

Mobile Robotics

Low-noise, linear, and stable MEMS gyros and accelerometers enable superior heading accuracy during turns & bumps

Auto-adaptive Kalman Filter algorithms provide exceptional dynamic performance

Auto self-calibration and automatic anomaly rejection make units with magnetometer reliable and accurate heading reference

Fully calibrated and temperature compensated IMUs provide stable performance in demanding environments

Antenna and Camera Pointing

Low-noise, low latency, and linear MEMS gyros and accelerometers result in accurate and stable attitude tracking

Rugged machined aluminum industrial packaging provides reliable performance in high-vibration and shock environments

Compact OEM versions for embedded applications permit lower cost without losing accuracy




SensorConnect is the next generation in desktop sensing software.

From configuration of nodes and starting networks, to collecting and analyzing data in real-time, SensorConnect provides a modern, powerful experience with our Wireless, Inertial, and Displacement products.

Using our intelligent data collection and graphing algorithms, you are able to visualize massive amounts of data instantly, and then zoom in on points of interest just as fast.

Built in MathEngine functionality allows for both real-time and post-processed math, such as generating FFTs, averages, RMS, etc.


Free and open source API

The MicroStrain Communication Library (MSCL) makes it simple to write code that interacts with our Wireless, Inertial, and Displacement sensors.

MSCL is completely open source and hosted on GitHub under the MIT license.

Full documentation, example code, and a quick start guide are provided to help you get started.

Available for C++, Python, and .NET.


Robot Operating System (ROS) is an open-source, meta-operating system for your robot. It provides the services you would expect from an operating system, including hardware abstraction, low-level device control, implementation of commonly-used functionality, message-passing between processes, and package management. ROS can be used in building and simulating robotics applications, as well as unmanned ground vehicles and simultaneous localization and mapping (SLAM). To facilitate better integration within the ROS ecosystem Microstrain has develop an open source License free (MIT License) series of drivers specifically designed and tested for ROS.

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