EMF RF Detector can be used as EMF Detector to read emf radiation level ( electromagnetic field levels from electricity transmission ) it gives you the reading in microtesla it's useful in case you want to test the emf leakage of your devices weather it's Mobile phones, computers, signal transmitters, EMF RF Detector will issue a strong magnetic field

EMF RF Detector app uses the built-it Magnetic sensor in your phone which means if your phone doesn't have built-it Magnetic sensor EMF RF Detector app won't work
You can use this app to measure and study magnetism and electromagnetism, the earths geomagnetic field and more. It can be used as a detector not only for EMF but also for magnets, metals, devices