How to turn your smartphone into a metal detector

How to turn your smartphone into a metal detector

This incredibly simple DIY will help you turn your smartphone into a real metal detector. Today, almost every modern phone has a magnetic field sensor in its arsenal. All that remains is to install the appropriate application on your phone and voila, you have a metal detector. It can be used to search for large and medium-sized metal objects in the ground, used to search for reinforcement in a wall, etc.

Will need


  • Round wooden slats.
    Round wooden slats.

  • A plastic tube, slightly larger in diameter than a wooden slats.
    Plastic tube

  • Two-component adhesive - cold welding.
  • Smartphone case.

How to turn your phone into a metal detector with your own hands


We heat the plastic tube towards the center with a hot air gun, putting it on a stick.
Warm up the plastic tube

Bend at an angle of approximately 35-40 degrees. And we continue to heat one of the sides.
Bend the tube at an angle

Using any piece of wood, flatten it and wait for it to cool.
flatten the end of the tube

This is the rod of the future metal detector.
the rod of the future metal detector turned out to be

We clean the glued area on the phone case and the flattened handset.
Protecting the gluing area

Mix the glue components.
Mixing the glue components

Glue the tube onto the black.
Glue the tube onto the black

Glue the case to the holder.
Glue the case to the holder

Download any metal detector application from Google Play.
download any metal detector application

Install and launch.
Install and launch the application

We install the smartphone in the case and the metal detector is ready for use.
Installing the smartphone in the case

To search, the phone must be constantly in motion. And here is one of the finds.
Searching with a metal detector

The metal detector senses it well at a short distance.
Metal detector found an object

Of course, you shouldn’t expect great sensitivity from this device, but it is quite enough to find a lot of scrap metal in the ground.

Watch the video


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Comments (1)
  1. cerg
    #1 cerg Guests 17 January 2021 15:25
    5
    Why is the selfie stick not suitable? The master somehow lags behind life....