Image acquisition: A digital camera Signal Processing: DSP Measuring system: 2 group industrial camera, four goals reflex plate and special software Measuring principle: The camera takes a candid photograph of the dynamic car wheel, car body and level surface on the speed of 0.5 seconds/times. The geometrical image will be contrasted with a predetermined standard image, and then got the four-wheel location data through calculation formula. RangePrecision Accuracy Total toe 200.02 Individual Toe 100.02 Camber 90.01 Caster 200.04 KPI 200.04 Setback 50.01 Thrust Angle50.01 Track width 2600mm0.5mm Wheelbase 3800mm0.62mm Voltage 110/220V Plywood case.