EMF radiation detection is a process which is done by the mobile phone radiation detector camera For this purpose we need to install mobile radiation detector app through which we can measure the UV rays and other infrared rays with RF radiation meter. For this purpose radiation detector free will work as your guass meter and RF meter that work as the microwave radiation detector.

The EMF Radiation Detector - Magnetic Field Detector uses android phone's sensor called magnetometer to detect Electromagnetic waves around you.
EMF measurements or measurements of radiation electromagnetic fields that are performed using particular sensors or probes such as EMF Meters.

Ionizing Radiation : This high-level radiation which has the potential for cellular and DNA damage.
1- Non-Ionizing Radiation:
✔ Extremely Low Frequency (ELF)
✔ Radio Frequency (RF)
✔ Microwaves
✔ Visual Light
2- Ionizing Radiation:
✔ Ultraviolet (UV)
✔ X-Rays
✔ Gamma
Electromagnetic fields are energy area which created by electronic devices there are two parts in fields. (1 electric 2- magnetic).
Electric field is created by differences in voltage and the magnetic fields are created when theres electric current running to a device.