Device for conducting monetary transactions, comprising a housing and a display screen (12; 100) held in a housing, wherein the display screen (12; 100) is rotatable and/or tiltable in relation to the housing with respect to a horizontal and/or vertical axis (3, 4, 5; 6, 7, 8; 20, 21, 22; 23, 24, 25; 26, 27) in such a manner that adjusting the tilt of the display screen (12; 100) takes place automatically, wherein the axes (3, 4, 5; 6, 7, 8; 20, 21, 22; 23, 24, 25; 26, 27) lie substantially in the plane of the display screen surface, and comprising a motorized control for adjusting the display screen, wherein the motorized control controls a drive unit coupled to the display screen, characterized by - viewing-angle determining means for determining a viewing angle (A, B) of a user located in front of the display screen (12; 100) with the aid of images of a camera and a face recognition algorithm, and - reflection-angle determining means for determining an angle of reflection of a radiation source illuminating the screen (12; 1000), wherein, depending on the time of day and the season, it is possible to deduce the position of the sun or the angle of incidence on the display screen (12; 100) or the display screen surface, in order to determine the angular position of the sun in relation to the display screen (12; 100) over the course of the day, wherein a current time of day can be determined on the basis of a hardware or software real-time clock and the angle of incidence of the sun stored for that time can be retrieved from storage means, wherein a calibration can be performed with the aid of calibrating means and, for calibration, a sensor module comprises light sensors (101, 102, 103, 104), with which the intensity of the solar radiation can be measured during a time period, for example a day, and - monitor-angle determining means for determining monitor-angle adjustment information on the basis of the determined viewing angles (A, B) and angles of reflection, which can be output to the motorized control. - viewing-angle determining means for determining a viewing angle (A, B) of a user located in front of the display screen (12; 100) with the aid of images of a camera and a face recognition algorithm, and - reflection-angle determining means for determining an angle of reflection of a radiation source illuminating the screen (12; 1000), wherein, depending on the time of day and the season, it is possible to deduce the position of the sun or the angle of incidence on the display screen (12; 100) or the display screen surface, in order to determine the angular position of the sun in relation to the display screen (12; 100) over the course of the day, wherein a current time of day can be determined on the basis of a hardware or software real-time clock and the angle of incidence of the sun stored for that time can be retrieved from storage means, wherein a calibration can be performed with the aid of calibrating means and, for calibration, a sensor module comprises light sensors (101, 102, 103, 104), with which the intensity of the solar radiation can be measured during a time period, for example a day, and - monitor-angle determining means for determining monitor-angle adjustment information on the basis of the determined viewing angles (A, B) and angles of reflection, which can be output to the motorized control.