【Professional OBDII Diagnostic Tool】Comprehensive automotive diagnostic device supporting OBDII/EOBD protocols for engine fault detection, battery testing, and performance analysis across multiple vehicle systems. 【40,000+ Fault Code Database】Extensive fault code library with instant P/C/B/U code interpretation and one-touch clearing capabilities using dedicated F1 (read) and F2 (clear) buttons. 【Real-Time Data Stream Monitoring】Live vehicle data monitoring including engine load, coolant temperature, intake pressure, throttle position, MAF readings, and RPM for comprehensive vehicle analysis. 【Smart Auto-Protocol Matching】Automatically detects and connects to vehicle communication protocols including SAE J1850 VPW/PWM, ISO 9141-2, ISO 15765-4 CAN, and ISO 14230-4 KWP without manual selection. 【Multi-System Testing Capability】Supports oxygen sensor testing, I/M readiness status, VIN information reading, and 12V battery voltage analysis with detailed condition assessment. Specifications: Model: K2 Product Dimensions: 171 × 87 × 22 mm (6.72 in × 3.45 in × 0.99 in) Cable Length: 50 cm Operating Voltage: 9 ~ 16 V Working Temperature: -20 ~ 60 ℃ Storage Temperature: -20 ~ 60 ℃ Display: HD LCD Color Screen Interface: 16-pin Universal OBDII Interface, Type-C Interface Supported Languages: 12 Languages (English, Simplified Chinese, Japanese, Korean, Traditional Chinese, Thai, Russian, Arabic, Portuguese, Spanish, German, French) Status Indicators: Red (Warning), Yellow (In Operation), Green (Fault Code Cleared), Blue (Successful Connection) Physical Buttons: F1 (Quick Read), F2 (Quick Clear), Back, OK, Directional Keys Supported Protocols: SAE J1850 VPW/PWM, ISO 9141-2, ISO 15765-4 CAN, ISO 14230-4 KWP Fault Code Database: 40,000+ Entries