Use this app to measure real magnetic fields and detect metals. You can detect little metal pieces, hight voltage currents or magnets.
* Check the magnitude and the three axes value
* Cool graph with the current value
* Alarm, you can set the level and the tolerance.
Works fine and has a nice interface. Very simple to use.
* Redesigned for iPhone 5, but also working in 3, 4 and 4S.
Try it out, its a real metal detector!!