HOME > Products > Rotary Encoders KOYO is proud of its rotary encoders. These are precision products embodying KOYO’s mechatronics technology based on its ample experience and maximum use of the JTEKT Group's unique advantage. Pagetop To inquire about this product or to purchase it, please click on the following buttons. Manuals and software are available to registered users. We invite you to become a registered user. The general catalog on this product is downloadable in PDF format. Counters / Controllers You need Adobe Reader to view PDF documents. Download Adobe Reader free by clicking on the icon below.