Xsens supplies miniature MEMS based motion trackers.
By Xsens Technologies BV 305
Xsens' MTi 1-series is a self-contained attitude heading and reference system (AHRS), vertical reference unit (VRU), and inertial measurement unit (IMU) as a 12.1 mm x 12.1 mm module.
By Xsens Technologies BV 269