MNI20N-0H02DY41N-00100:02. . Cost-effective, bearing-free rotary encoder for rotational speed measurement. Simple installation. Operating display verifies function. High degree of protection (IP67). Magnetic ring with 50 poles. Clear and functional display concept for the operating modes. Protection class II. Up to SIL 3 acc. to IEC/EN 61508. Busy channel indication. Auto power off function