ELTRA RM500C1500S5L10S3MR Metric wheels. Size: 500 mm linear extent. Wheel type: rubberized. Resolution: 1500 ppr. Without zero pulse. Power supply: 5 V DC. Output type: line driver. Shaft diameter: 10 mm. Encosure rating: IP 66. Rotation speed: 3000 rpm max. Radial M connector output. Wheels are perfect for industrial applications for measurement of linear movement.