Dnose DN319 Car Code Reader, OBD2 Scanner Automotive Engine Fault Code Reader Enhanced CAN Diagnostic Scan Tool for All OBDII Protocol Vehicles Since 1996. Graph Display：Show the live data via graph mode,DN319 can show LOAD PCT, ECT,RPM,VSS,ITA,MAF,TP live data in graph，Even if you are a beginner who can't fix a car, you still can understand the car condition.
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