【實用工具app】Security Scanner - Metal Detector Free|最夯免費app-綠色工廠好玩App

Real Metal Detector with intuitive interface. Using this application you can easily find ferromagnetic metals (iron, steel, silver etc) inside your bag or pocket. Explore your surroundings and feel yourself like a detective!HOW IT WORKSBy detecting nearby electromagnetic fields using the phone's built-in magnetometer/compass, you can locate nearby metal and magnets. You can also use it to find metallic studs and wiring behind walls. Works with only ferromagnetic metal (steel, iron etc). The magnetic field level(EMF) in nature is about 49μT(micro tesla) or 490mG(milli gauss); 1μT = 10mG. You will see this value by default.Best sensitivity near the camera on your iOS device. Shake for calibration.