The metal detectors App metallic and magnetic, or electromagnetic waves can be measured using the smartphone's built-in magnetic field sensor.

Magnetism around about 49μT (Micro-Tesla) magnetic field levels in the state of nature, and makes use of the principle figures dating.

This Is sensitive magnetic field sensor that generates electromagnetic waves for electronic products (TV, PC).

To initialize the magnetic field sensor 8-shaped horizontal direction, the screen of the smartphone skyward stir hwihwi the smartphone.

On the iPhone, if it can be because it is located in the upper-right corner of the iPhone upright vertical position of the magnetic sensor (lower part of the rear camera), so that the objects in this area.

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