ELTRA EL721A100Z5L10X Incremental encoder with hollow shaft and fixing holes. With zero pulse. Encoder size: 72 mm. Resolution: 100 ppr. Distance between holes on flange: 63,5 mm 5 VDC Power Supply. Line driver electronic interface. Shaft diameter: 10mm. Enclosure class: IP 54. Series is recommended for industrial application with high mechanical resistance requiements.