The new facility the thickness and profile check an enormous gap measurement offers of 190 mm, which was nearly tripled. Also, wavy or vibrating metal bands can thus be reliably detected. Instead of the previous point laser sensors are now used profile sensors, which measure much better in a variety of belt materials and increase the monitoring range significantly. The system provides for a thickness measurement with 0.01 mm accuracy and serves to stabilize the process, quality assurance and documentation. By using a special high-tech photoelectric reliable edge detection is also present in distorted bands. This enables a robust width measurement with high reliability. Even single strip over the entire process down to the ring ready for delivery are documented. The system works by using optical measurement methods, in contrast to the widely used radiometric method is completely free of radiation and alloy-and material-independent. The measuring system for thickness and profile testing is used for tapes up to 4 m in width and thickness between 1 mm and 12 mm.