An electric toothbrush is provided. The described dosimeter utilizes new processes and algorithms to create a self-contained, passive, integrating dosimeter. The mobile application may also provide travel information and secure communication to each user of the group of users, wherein the group of users may be restricted based on the travel transaction. The support frame provides physical support for the entire board structure without influence on the circuit connection so as to prevent the laminate circuit board structure from warping. The labels are adaptedly structured according to the apparatus. The attachment assembly has a width which closely mirrors that of the fan profile.