Colorful, eye-catching, individual — this is how the new PK52 for installation in glass doors of buses and trains presents itself. The video about the popular door opening push button of TSL-ESCHA shows the wide range of the product. A large selection of pictographs and colors of the front panel as well as various combinations of light signals are in the focus. Also the structure of the double-sided push button is shown in detail in an exploded view. Press the push button and the glass door of the tram opens. The new design of the PK52 push button series is presented rapidly in the 33-second spot. Watch for yourself in the video.