Info: Not all android devices have a built-in magnetometer, so please be advised that it may not work with your device. Icon and text will indicate if device is compatible once application starts. Accuracy is dependent on manufacturer. A magnetic field sensor (also known as magnetometer) reports the ambient magnetic field, as measured along the three sensor axes. The measurement is reported in the x, y, and z fields and all values are in micro-Tesla (uT). Settings: For audible alarm and vibr