The Autel AutoLink AL539B is a powerful and versatile OBDII diagnostic tool that combines full-function vehicle diagnostics with advanced electrical testing capabilities. Designed for both professional technicians and DIY users, the AL539B allows you to read and clear codes, view live data, and perform a wide range of tests on OBDII-compliant vehicles. What sets it apart is the built-in multimeter and battery test function, making it a comprehensive tool for diagnosing both engine faults and electrical issues.

Features:

• Full OBDII functionality: read/clear DTCs, I/M readiness, freeze frame data, and live data stream
• Built-in multimeter: test voltage, continuity, and current (AC/DC)
• Battery test capability: test starting voltage and condition of 12V batteries
• One-click I/M readiness key for quick emissions checks
• On-screen DTC definitions and live graphing for easier diagnostics
• Supports all 10 OBDII test modes for a complete diagnosis
• Large color display and easy-to-use interface
• Compatible with most 1996 and newer domestic, Asian, and European vehicles