1. Input Self-calibration, 2. Ounces/Gram Selectable, 3. MM/INCH selectable, 4. Normal, Static, Al1, Al2, AL3 balancing modes. Rim size: 10-24' Rim width: 1.5-20' Balancing Speed: 200 R. P. M. Accuracy: 1 Gram/0.035 OZ. Maximum wheel weight: 65kg Maximum Tire Diameter: 51 " Automatic data entry: NO Weight position resolution: 1 Degree Self Calibration: Yes Power supply: 110V/220V, 50/60HZ Shipping Weight: 110 KG