With continuous measurement and control of the material usage, it is possible to save and control raw materials, additives and energy. At the same time, product features as well as the product quality can be optimized. GreCon offers a broad range of weight per unit area gauges to be used in various fields of application. Depending on the system, this range goes from a simple determination of the material quantity by means of the weight per unit area measurement to a measurement of the cross profile and even right up to measuring the material itself.