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This app measures the magnetic field using magnetic sensors on your device.
Magnetic field level (EMF) in nature is 49μT(micro tesla) or 490mG(milli gauss); It is around 1μT = 10mG. If there is any metal (steel, iron) nearby, the magnetic field level increases.

Very easy to use: Open the app and move your device. The magnetic field level constantly changes. This is everything!

You can find electrical wires in the walls (like a screw finder) and iron pipes in the floor.

Many ghost hunters downloaded this app, and tried it as a ghost detector.

Its sensitivity depends entirely on the magnetic sensors (magnetometer) in your device. Please note that it is affected by electronic equipment (TV, computer, microwave) due to electromagnetic waves.