Portable device for detecting electromagnetic radiation levels

The invention relates to a portable device for recording the levels of electromagnetic radiation to which a person is exposed. The device includes a processor (5) that selects the frequency band for measuring the electromagnetic intensity of an electromagnetic radiation receiver, and a meter of the electromagnetic intensity (15) received. The receiver of the electromagnetic radiation comprises a plurality of combinable quarter-wave lambda antennas (10) for establishing a plurality of frequency measurement bands. The processor (5) stores in a memory (6) the intensity level measurement in a corresponding frequency band to enable the subsequent analysis thereof. The system can also record temporal and spatial information related to the measurement made for a better analysis of the exposition of what was done.