Turn Your Smart Phone Into A Metal Detector

https://youtu.be/9d9It2z-ODU This application measures the magnetic field with a built-in magnetic sensor.
The level of the magnetic field (EMF) in nature is about 49μT (micro tesla) or 490mG (milli gauss); 1μT = 10mG. When a metal (steel, iron) is close, the level of the magnetic field will increase.

The use is simple: open the application and move it. The level of the magnetic field will constantly fluctuate. It is! You can find electrical wires in the walls (like a spike detector) and iron pipes in the ground.

Many ghost hunters had downloaded this app and experimented as a ghost detector.

The accuracy depends entirely on your magnetic sensor (magnetometer). Note that it is affected by electronic equipment (TV, computer, microwave) due to electromagnetic waves.

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Thanks HandmadeCreativeChannel! We've added your Metal Detector to our Miscellaneous category,
as well as to your builder page: HandmadeCreativeChannel's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-metal-detector-5"> <img src="/uploads/237938/homemade-metal-detector-5.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="https://www.homemadetools.net/homemade-metal-detector-5">Metal Detector</a> <span> by <a href="https://www.homemadetools.net/builder/HandmadeCreativeChannel">HandmadeCreativeChannel</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/smartphone'>smartphone</a> </div> </div> </div> </div>
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I never knew phones could do this.