Metal Detector

Metal Detector is an Amazing tool that uses magnetic sensor to find the metal surrounding you.
Metal Detector measures nearby electromagnetic fields using the phone's built-in magnetometer compass. The magnetic field level(EMF) in nature is about 30~60μT(microtesla) or 300~600mG(milligauss); 1μT = 10mG.
If there is any metal in the area, the strength of the magnetic field should increase.
The accuracy depends entirely on the sensor in your device. Note that the magnetic sensor is affected by electronic equipment (TVs, PCs, etc.) due to electromagnetic waves.
How to use: Open this app on your device, and move it around. The magnetic field values will constantly fluctuate. That's it!