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If you have those devices you should measure all that you can, both rf and ef. Find out what is triggering high readings. Some "all-in-one" devices can measure RF, EF, and Magnetic Fields.
The term “electromagnetic field” (EMF) is frequently used as a generic term, however, it actually comprises quite different frequency ranges that differ considerably both with regard to physical and biological aspects. EMF comprise static magnetic (SMF) and static electric fields (SEF), extremely low frequency (ELF), 1Hz – 300Hz, and intermediate frequency (IF) electric (EF) and magnetic fields (MF), 300Hz – 100kHz, and radio frequency (RF) electromagnetic fields, 100kHz – 300GHz. Up to the RF range, electric and magnetic fields can be considered independently from each other, while in the RF range, they are tightly coupled together like the links of a chain.