MAG3110

MAG3110: NXP High Accuracy, 3D Magnetometer

http://www.nxp.com/products/sensors/magnetometers/sample-data-sets-for-inertial-and-magnetic-sensors/freescale-high-accuracy-3d-magnetometer:MAG3110

http://www.dx.com/p/mag3110-triple-axis-magnetometer-breakout-module-blue-392445

https://cdn.sparkfun.com/datasheets/BreakoutBoards/Mag3110_v10.pde

See Accelerometer, Gyro and IMU Buying Guide