The UM6 was designed specifically to be easy to use—an external enclosure protects sensitive electronics, and connectors make it easy to interface with the sensor without making solder connections to the sensor itself.
The UM6 r2 ultra-miniature orientation sensor, also known as an Attitude and Heading Reference System, or AHRS from CH Robotics is much more than an IMU.
It uses rate gyros, accelerometers, magnetic sensors, and an onboard 32-bit ARM Cortex processor to estimate the absolute sensor orientation 500 times per second. Sensor orientation is reported using either quaternions or Euler angles over a TTL serial interface at user-customizable rates.
A USB-to-serial adapter can be used to connect the IMU to a computer running the free CH Robotics Serial Interface PC application, which allows for easy data visualization, board calibration, and UM6 settings configuration.