Magnetometer

AppDevGenie

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.

Ratings and reviews

I found it a great tool to detect magnetic fields. Very fast response. I found it also seems to detect space weather. Avg reading is 50ut but read 120 for two dayys during the widely publicized solar storm. And recently in our outdoor rural setting it rose to 620 and our power flickered and went out. The reading stayed high for 20 minutes before suddenly dropping back to normal. Amazing!! Power outage lasted about an hour.

Read all reviews. Installed and checked it out. This app is 1000% legit and on point, it does exactly what is Says. Has no unnecessary permissions, isn't stealing data, and NO ADS OR PAYWALLS. Which is refreshing frankly. I'm going to see what else this developer offers because something that isn't monetized is a rare find on the play store. Impressive.

Seems to work well, but I must be dumb. I can only guess what it's doing. Maybe it's right. Maybe not, I have no clue. Operation is straightforward and almost nothing to do- that I am aware of. I've not found any documentation or information on how it's working or even really what it is supposed to be doing? Is it measuring the earth's and/or Sun's magnetosphere or the relative strength of a magnet or magnetic properties of something? With alarm set at 90 and it goes into alarm mode, then what?