Measuring personal exposure to electromagnetic radiation is an area that is gaining importance within the RF research. This exposure is measured by exposimeters that are worn on the body and measuring the incident electric field strengths in different frequency bands. In the doctoral study by Arno Thielens was shown that the exhibit a too great uncertainty of measurement devices that are used today and have a number of disadvantages which prevents a correct measurement of the incident electric field strengths. During the doctoral research developed the first prototype of a personal, distributed exposimeter, consisting of several radio nodes that are worn on the body. By using multiple nodes this unit has a much lower uncertainty than the existing alternatives. The prototype, however, in one frequency band only measure and is not able to measure the total personal exposure to RF EMF.