Autel

The AutoLink® AL539b OBDII & Electrical Test Tool supports all 10 modes of OBD II test for a complete diagnosis. Featuring the unique patented One-Click I/M Readiness Key, circuit test, starting and charging systems tests, battery test, TFT color display, and built-in speaker, the versatile, easy-to-use AL539b will streamline automotive service and help ensure rapid, accurate diagnosis and timely repair.