AECO is the number one capacitive proximity sensor manufacturer in western Europe. Their design and manufacturing headquarters in Italy is home to the most advanced capacitive proximity sensor technology, including innovative compact 18mm capacitive proximity sensors most often not available from other manufacturers. Capacitive sensors are used widely as limit switches which are sensitive to all types of materials, as limit controls for sensing the maximum and minimum levels of liquids, powders, granules, etc., in silos and various containers. They can also be used for sensing or counting metallic and non-metalic objects.