1.Electronic balancing machine with microprocessor for off-vehicle. 2.Manual input of rim width, distance and diameter. 3. Automatic inspection of dynamic and static balance. 4.Six types of balancing, able to balance six types of aluminum rims. 5.Precision of balance up to +/-1g. 6.Automatic self diagnosis and self-calibration function. 7.Rigid plastic wheel protection meets national safety standard. 8.Indication of unbalance in convertible grams and ounces. 9.Automatic start by lowering the wheel guard. 10.Automatic stop plus foot brake. Rim Width: 1.50 in. (50 mm) to 20 in. (520 mm) Rim Diameter: 10 in. (272 mm) to 24 in. (640 mm) ALU: 7.5 in. (190 mm) to 44 in. (999 mm) Maximum Tire Diameter: 41 in. (999 mm) Maximum Tire Width: 20 in. (520 mm) Maximum Tire/Wheel Assembly Weight: 143 lbs. (65 kg) Balancing Accuracy: + 1gram