Optical encoders A selection of Renishaw encoder readheads, scales, and their accessories. Please check compatibility before ordering. Still looking? The complete Renishaw encoder product ranges can be found here. Select a product group Encoder readheads Renishaw encoder readheads for optical encoder systems, including incremental and absolute solutions. Encoder readheads Encoder scales Renishaw encoder scales for optical encoder systems, including linear and partial arc solutions. Encoder scales Readhead accessories Accessories for Renishaw encoder readheads including encoder installation accessories and cables. Readhead accessories Scale accessories Accessories for Renishaw encoder scales including installation accessories. Scale accessories Shopping security Recall your cart