-*- Metal detector -*- Works really well, with adjustable sensitivity. Vibrates and beeps when a metallic object is under the phone. Uses digital filter to eliminate noise. NOTE: Some metals (like aluminium) don't react to magnetic fields: this app won't detect them!
-*- Magnetic field detector -*- Shows a graph of the magnetic flux density on the X, Y and Z axis. All reading are in uT (microtesla). It also show the total magnetic flux density (R, white) and compares it to the earth magnetic field (30 uT, magenta).
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