Magnetometer

4.5
1.29K reviews
100K+
Downloads
Content rating
Everyone
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About this app

Info:

Not all android devices have a built-in magnetometer, so please be advised that it may not work with your device.
Icon and text will indicate if device is compatible once application starts.
Accuracy is dependent on manufacturer.
A magnetic field sensor (also known as magnetometer) reports the ambient magnetic field, as measured along the three sensor axes.
The measurement is reported in the x, y, and z fields and all values are in micro-Tesla (uT).


Settings:

For audible alarm and vibration on high field detection click on respective buttons to toggle.
Change alarm sensitivity by clicking on reading and swipe seek bar to set.


Calibration:

If output readings fail it attempt to calibrate by gently shaking the device or waving the device in a figure 8 pattern.


Permissions:

Vibration: select whether device should vibrate when high signal is detected.
Wake lock: Device will not sleep during operation.
Updated on
Nov 23, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.5
1.28K reviews
Peter Becher
February 20, 2026
Seems quite good, have not used it a lot. I like the list of sensors available on the phone.
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Chris Hughes
January 23, 2026
Helpful tool. Great app that functions well without any negatives. Thank you!
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Heidi Baker
March 9, 2026
so far this has been the best metal detector app that I've tried. And I've tried quite a few of them, but I'm only giving three stars because I cannot get it to detect any non-ferrous metals aluminum, Copper, Brass, Etc and it would be nice if it came with more instructions so that you didn't have to do so much guessing.
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