This Magnetometer is a great way for you to detect electromagnetic fields. By using your device's inbuilt geomagnetic field sensor we can measure fields in the X, Y and Z axis. All electrical devices give off magnetic fields in various strengths, some can be dangerous to your health. Our app allows you to find electromagnetic fields (EMF) around the home, workshop and office. You can use it to detect cables in walls, anomalies, electromagnetic interference or find out what strong magnetic fields surround you every day.