Under the topic "environment" you can find material like e.g. humus, wastewater sludge, etc. These materials are very often inhomogeneous mixtures with various densities within the material itself. The real-time determination of the residual moisture requires perfect conditions like equal dumping height, constant compaction, etc. By developing and producing a variety of integration kits ACO has really taken care of this problems. Many applications of the topic "environment" could be solved by using an ACO-sensor in combination with a suitable integration kit.