Transducers of non-electrical quantities are very important in different areas of human activities. Transducers are used to convert non-electrical quantities to electrical quantities which are more convenient for further processing and storage. In this subject students can widen their knowledge of various physical effects (e.g. Hall effect, AMR effect, and so on) and electrical methods which are used for measurements of non-electrical quantities. Students can widen their knowledge of principle of operation of electronic instruments for measuring non-electrical quantities.