Photochronoscope. Suitable apparatus for kinematographic pictures of working processes. To indicate the temporal difference, the chronoscope itself is visible on the picture. The lower clock (300 mm diameter) indicates the 1/100 seconds, the upper clock (diameter 250mm) the seconds. Both clocks are set into a solid case. The chronoscope can be released mechanically and electrically. There is a guide integrated in every clock face to mark the special experiment with its datas. Duration: 15 minutes; precision: 1/100 sek.; tension: 4-6 volt; bottom size: 320x460 mm; hight: 800 mm; 14,000 kg.