At the International Workshop on Biological UV-Dosimetry in Budapest, 29 November-3 December 1994, a comparison of different UV-dosimeters was carried out in order to evaluate their performance and to compare different types of measurements. The various dosimeter types included dotted dried spores of Bacillus subtilis on glass and plastic ("biofilms"). Solar Light Company Biometers (Robertson-Berger Meter), thin layer uracil sensors, and several handheld electronic devices. An electronic dosimeter (ELUV-11) designed as a button to wear on clothing also took part in this intercomparison. In the following, data obtained from the ELUV-11 measurements is presented, and properties of this class of personal dosimeters are discussed.