Has it ever happened to you that you drop a clip, a pin or a safety pin and you are not able to find it ? In general, anyone would use the flashlight of his cell phone and his naked eye, but in reality everything is much simpler, because yes, in your pocket - or in your hand, depending on where you read this - you have a metal detector that works extraordinarily well that can get you out of more than one hurry. Do you want to know how to turn your Android into your metal detector? Well, keep reading!
URCERI Metal Detector High Accuracy Waterproof Treasure Hunting Tool, 2 Modes Outdoor Gold Digger with Sensitive Search Coil, Folding Shovel and Headphone for Beginners Professionals
All, or almost all Android smartphones have a magnetometer , a sensor capable of detecting and measuring electromagnetic fields. With the application "Metal Detector" you can use that sensor to find different metal objects around your house - or the typical ring / pendant / bracelet that always falls on the beach - easily. You just have to download it, calibrate it and move your phone.
To calibrate it, simply move the phone up by making an eight several times (like when you calibrate the compass). You will see that you have a standard measurement of about 45μT and that the graph remains stable. However, if you bring your mobile to a metal object an alarm will sound and you can check the intensity of the magnetic field, so you can find any lost object (as long as it has some metal, of course).
The application works really well, and in the tests that I have done with my Galaxy S7 edge (it is burst and it is the one I use for all these "experiments") it has proven to work better than I expected . I have done some tests with objects from my room such as the computer case, a red metal drawer and a shelf and, in fact, when it is metallic the phone starts beeping while being wood or other material does not whistle at all.
It is true that it does not have the sound that we all recognize from metal detectors , but if you have fallen a pin on the ground you will appreciate having this app at hand. It's free , by the way.
Better metal detectors to find gold nuggets in rivers or mines
Normally, metal detectors for gold prospection have a frequency of 15 KHz to 18 KHz, but in 2017 that changed for the better, high frequency coils started coming out, said coils could reach 59 KHz and others until 85 KHz.
This high frequency in the coils is a radical change in the search for gold with metal detectors, you can also use the detector in parks, because you could find small gold tendrils, which would be impossible for any other metal detector.
These high frequency coils work without problems in very mineralized soils, we can also detect near high voltage towers without suffering any interference.
The only disadvantage would be that we would lose depth, but if you want to find things like ultra thin coins or that are buried vertically, gold tendrils and native gold, buy a high frequency metal detector.
Buy the XP Deus detector by parts and try to buy the headphones that are updated in the V-4.0 version, because the previous versions do not work with the high frequency coil.