Surprisingly, Metal Detectors Apps detects metal properties via inbuilt compass. This provides simple and fun way to do this. Simply turn the program on and it will start scanning for signals transmitted by metal objects.


How it works:

Mobile Metal Detector Apps

The built-in compass uses the earth's magnetic field to calculate the deviation from magnetic north. As with every compass, if you put a piece of metal nearby, it gets deviated. That's what is used here to detect metal.

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