EMF (Electromagnetic Field) is a part of the natural world that we cannot see or even measure. However, with the right tools, you can find out what’s going on in the invisible world. The Metal detector - EMF Meter app is a metal detector that uses a magnetic field to measure the presence of metals. If there is a metal present, the detector will make a sound and vibrate. The app has a built-in sensor that can detect the magnetic field. EMF is one of the most interesting things to explore in this world. If you want to find out more about it, this app can help you with that.