MAGNETIC_FIELD constant
int
const MAGNETIC_FIELD
Geomagnetic field sensor. Monitors changes in the earth's magnetic field. This sensor returns a 3 axis (x, y & z) list of values. Both Android and iOS returns this values in μT (microtesla).
Android documentation:
https://developer.android.com/guide/topics/sensors/sensors_position#sensors-pos-mag
iOS documentation:
https://developer.apple.com/documentation/coremotion/cmdevicemotion/1616140-magneticfield
Implementation
static const int MAGNETIC_FIELD = 2;