**Upgraded Version:** AD20 Pro is the enhanced version of AD10/AD20, designed to be a user-friendly and compact OBD2/EOBD Bluetooth interface that transforms your smartphone into a sophisticated wireless OBD2 scanner and real-time performance monitor, **Comprehensive Functionality:** Download the "Advancer AD20" app from Google Play or the App Store to access features like Check Engine Light diagnostics, All System Scan, Full 10 Modes of OBDII Tests, Car Performance Monitoring, Trip Recording, Bat, **All System Scan + Oil Reset:** Unlike cheap OBD scanners that focus on the engine alone, AD20 Pro offers all system scanning, including Engine, Powertrain, Steering & Brake, Airbag, and more. It also features an oil reset function, allowing you to, **Full OBDII Tests + DTC Lookup:** AD20 Pro supports all 10 OBD2 tests, including reading/clearing codes, live data streaming, freeze frame data, ECU information, component testing, mode $06 on-board monitor testing, O2 sensor testing, I/M readiness, **Check Engine Light + Annual Inspection Preparation:** In addition to reading and clearing fault codes, AD20 Pro comprehensively checks your vehicle's components and prepares the monitors for annual emissions inspections, making it easier for you to
