Automatical START/STOP Automatic distance and wheel diamete measuring self diagnosis self calibration Changeable between gram and ounce Changeable between milimeter and inch Protection vover 4alu Functions for light alloy wheels Full screen display for the a.b.d.reading Power supply 220V1HP Motor power 185～320W Balancing speed ≤190r.p.m Balancing Precision ?g Rim diameter 255～615mm（10"-24"） Rim width 40～510mm（1.5"-20"） Max wheel weight 70kg Noise ＜70dB