ThinkOBD 500 OBD2 Code Reader Scanner Car Diagnostic Tool Check Engine For VW GM
THINKOBD 20 is the basic model and has all OBD2 diagnostic modes. THINKOBD 100 has the function of free software update on the basis of THINKOBD20., THINKOBD 500 has the function of outputting inspection report on the basis of THINKOBD 100.