Using the sensor in your phone you can read the magnetic field strength near by, and record a stream of data points.

Not all phones have this capability so please be advised that it may not work with your phone.

It is based on the data logging software in the Angstrom Metrology family of apps.

-track and record a stream of data points.

-It has a manually set calibration factor, which you can change to adjust your readings.

-It also can "zero" out the pressure for measuring relative differences if desired.

-This version has the ability to email/download your data files.

Feel free to contact us with any concerns or questions about the app.