ELTRA EH80P500S5/28P15X3PR Hollow shaft incremental Encoder. Several output types available. Size: 80mm. Through hollow shaft. Resolution: 500ppr. Without zero pulse. Power Supply: 5 - 28 V DC. Output type for incremental signals: push-pull. Bore diameter: 15mm. Enclosure rating: IP54. Max rotation speed: 3000rpm. Radial Output. Series is recommended for AC servomotor of feedback systems.