Metal Detector Tool is an application that uses the sensors built in the phone to detect nearby metals and magnetic fields.
Simple magnetometer: Turn on the metal detector on your device and start walking around, you will see a constantly fluctuating screen, if there is any metal (steel or iron) nearby, the magnetic field index will rise
high.
When the mobile phone is placed very close to the metal, and the index rises to the warning value, the device will vibrate and make a sound.
Use your phone to detect precious metals anytime and anywhere