The ASI-16 All Sky (Total Sky) Imager is an automatic full sky camera system with 180° field of view. It provides high resolution images, both as pre-scheduled network stored JPGs and as video life stream. Environment temperature and humidity are captured and stored with images and in datalogger-like files. Double shielding, forced ventilation and strong heating ensures operation in any harsh environment. In combination with CMS Cloud Analysis Software the system provides a variety of valuable numeric data. The standard camera features an integrated ventilator and heater system to operate under most severe weather circumstances. Image classification is applied to calculate cloud coverage and cloud classification.