TT Electronics/BI EN11-HNM3BQ20 Rotary Encoder. This robust mechanical encoder, part of the TT Electronics/BI encoder catalog, offers reliable position sensing for various applications. Engineered for precision, it features a durable construction suitable for demanding environments. Its compact form factor and straightforward interface make it an ideal choice for control input in industrial automation, consumer electronics, and automotive systems. The EN11-HNM3BQ20 is supplied in tray packaging for efficient integration into manufacturing processes.