Metal Detector is an Android application that detects the presence of metal nearby by measuring the magnetic field value. This useful tool uses the magnetic sensor built into your mobile device and shows the magnetic field level in μT (microtesla). The magnetic field level (EMF) in nature is about 49 μT (microtesla) or 490 mG (milligauss); 1 μT = 10 mG. If any metal is nearby, the value of the magnetic field will increase. Metal Detector allows you to identify any metal object in the area beca