Are you looking for a magnetic sensor app, an EMF Reader, a gauss meter magnetometer, or a compass sensor app that works offline?
So, so this the right place.
This Magnetic Sensor app is a magnetometer sensor that detects x, y, and z values of the magnetic field as well as readings of electromagnetic radiation.It's targeted at students.As an EMF Radiation Detector or Gauss Meter, you can use it for research or experimentation.EMF Analyzer is a program that analyzes electromagnetic fields.

what is magnetic sensor:

In addition to electromagnetic field EMF, the magnetometer in a phone measures the magnetic orientation of the phone in relation to the X, Y, and Z axes in relation to the real world north direction. which is provided by a built-in Sensor of Magnetism

what is x, y , z

strength X : X the north component of the magnetic field; X is positive northward
strength Y: the east component of the magnetic field; Y is positive eastward
strength Z: the vertical component of the magnetic field vector; by convention Z is positive downward
EMF intensity value :EMF Meter gives you the electromagnetic field value EMF by Microtesla

its uses:

Magnetic sensors can be used as compass sensors or metal detectors, as well as for location monitoring and anti-theft devices. They can also be used as electromagnetic waves detectors, EMF readers, magnetometer sensors for Android, or gauss meters. as it can be used as qibla compass to find qibla direction
*** The Magnetic Sensor app includes the following features:
- analog EMF Meter
- accurate compass with the degrees for getting directions
- magnetometer sensor app serves study purposes.
- It makes use of the sensor that is already installed in your smartphone.
- The Magnetic Field Sensor uses electric current flux to locate the locations.
- Magnetic Field Detector quickly detects magnetic field axis such as X, Y, and Z directions.
- It's a one-touch application.
- It determines the origin and strength of magnetic field.
- The Magnetic Field Sensor senses the power supply's location.

How to use Magnetic Field Sensor:

Simply launch the application and begin working by choosing from the available options. It's a simple app to use. There are no choices that are overly complex. Next to the magnetic sensor, you'll find an EMF reader, magnetic field sensor vectors, and other options like check and repair magnetic sensor.
and a magnetometer checker to see if your phone has a magnetic sensor

EMF Meter:
This application simply shows the intensity of an electromagnetic field EMF, allowing it to be used as an electromagnetic detector or gauss meter, displaying electromagnetic wave measurements in microTesla uT.

Magnetic sensor checker:
This feature allows you to see if your phone has a Sensor of Magnetism .
It's critical that this app work properly.
Many of the functionality would be disabled without that sensor.

try to fix option:
this option helps you to fix and repair the magnetic sensor in your device it has a chance to work try it if it works the EMF Reader and magnetic sensor will operate properly once more.

Note : Magnetic Sensor will not work on your phone if it does not have a built-in magnetic sensor. and the EMF value will not be shown