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This app measures magnetic field using a magnetic sensor that is built into your device.
The magnetic field level (EMF) in nature is about 49μT(micro tesla) or 490mG(milli gauss); 1μT = 10mG. When any metal is near, the value of magnetic field will increase.
Usage is simple: Open the app, and move it around. The magnetic field level will constantly fluctuate. That's it! You can find electrical wires in the walls (like a stud finder) and iron pipes in the ground.
A lot of ghost hunters had downloaded this app, and they had experimented as a ghost detector.
The accuracy depends entirely on your magnetic sensor (magnetometer). Note that it is affected by electronic equipment (TV, PC) due to electromagnetic waves.
* Main features:
- Alarm level
- Beep sound
- Material design
** Metal detector cannot detect gold, silver and coins made by copper. They are classified as non-ferrous that has no magnetic field.
This update is signed with Apple’s latest signing certificate. No new features are included.
Up to six family members will be able to use this app with Family Sharing enabled.