The Adafruit TMAG5273 (A2) 3D Hall Effect Magnetometer Breakout is a low-power linear 3D Hall-effect sensor designed for a wide range of industrial and personal electronics applications. It integrates three independent Hall-effect magnetometer sensors in the X, Y, and Z axes for full 3D orientation detection. The built-in 12-bit ADC can read the signal from each axis for read-out over I2C, it even has a thermometer built in for basic temperature reading!