No longer available Click here for the new equivalent magnetostrictive linear transducers WRP-S/WRA-S Contactless linear position transducer with ONDA magnetostrictive technology with RS422-SSI digital output interface. The absence of electrical contact on the cursor eliminates all wear and guarantees almost unlimited life. The IK4 line’s new mechanical structure offers improved features for in-cylinder use, including a series of new multi-connector models, free rotation of the connector head, and replacement of internal electronics without removal of the transducer.