ELTRA EH80C500Z5L8X3PR Hollow shaft incremental Encoder. Several output types available. Size: 80mm. Blind hollow shaft. Resolution: 500ppr. With zero pulse. Power Supply: 5 V DC. Output type for incremental signals: LINE DRIVER Bore diameter: 8 mm. Enclosure rating: IP54. Max rotation speed: 3000rpm. Radial Output. Series is recommended for AC servomotor of feedback systems.