【實用工具app】Metal Detector Free App - Security Scanner|最夯免費app

This app is a portable metal detector. By 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 magnetic 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.18b3648094

免費玩Metal Detector Free App - Security Scanner APP玩免費

免費玩Metal Detector Free App - Security Scanner App

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