ELTRA EH80C500Z8/24P16X Hollow shaft incremental Encoder. Several output types available. Size: 80mm. Blind hollow shaft. Resolution: 500ppr. With zero pulse. Power Supply: 8 - 24 V DC. Output type for incremental signals: push-pull Bore diameter: 16mm. Enclosure rating: IP54. Series is recommended for AC servomotor of feedback systems.