1)Independ knowledge property right ,and abundant vehicle data source,which provide long benefit for the customer. 2)Advanced 8-beam CCD image measurement system,which with high precision ,strong resistance for environmental interference,and good repetition. 3)All digital sensor,LED electronic gradienter structure,which keep step with mumeral era. 4)Adopting wireless communication,free frequency-brand could communicate freely. 5)Be economical,convenient and quick.