A wide variety of gaseous and liquid media can be contaminated, e.g. compressed air with condensate or oil and lubricants or diesel fuels with water. Such and similar impurities can significantly shorten the life of various system components, cause enormous damage and also significantly disrupt important processes. ipf electronic therefore offers a range of sensors for the targeted analysis of compressed air and neutral gases, for example, as well as transformer, motor, lubricating or hydraulic oils, to name just a few examples.