Incremental line encoding with "pre-assembled" pinion-rack system with mod. 0,796 racks for position reading from 100 mm to 50.000 mm (and more) with resolution from 1 µm to 1 mm. Extremely rugged and accurate, to be applied on machine tools, numerical controls, etc. Highly reliable in rough working conditions (vibrations, oils, steam, chips, etc.). CR85 is a transducer like CR80 but with racks of cheaper type.