leagend Car Battery Tester 6V/12V with 20-2000A CCA, 24V Cranking/Charging System Test, Quick Test & Multi-Standard Support, Diagnostic Tool for Trucks/Boats/RVs/Marine Vehicles

["6V/12V Coverage & Lead-Acid Compatibility:Works with Regular Flooded, AGM, EFB, GEL lead-acid batteries for cars, trucks, motorcycles, and marine vehicles. Covers all common 6V/12V vehicle battery types, meeting diverse testing needs for both personal and professional use. It also supports 24V cranking and charging system tests for heavy-duty 24V vehicles.","1400 Test Records & 120s Waveform Save/Playback:Stores up to 1400 historical test records (350 for each test type) for easy traceability and documentation. Real-time voltage curve display with 120-second save and playback functions enables precise fault diagnosis, even for subtle performance issues.","One-Key Quick Test for Efficient Operation:One-key quick test function streamlines batch battery testing or real-time voltage monitoring, significantly saving time for mechanics and auto shop daily workflows. No complex setup required for fast, repeated use.","2.4\" Color Screen & Intuitive Status Feedback:2.4\" TFT color screen offers clear, easy-to-read data even in bright workshop environments. Paired with test result indicator lights for intuitive status recognition, making it simple for beginners to operate confidently.","Safety Protection & Auto Temperature Compensation:Built-in short circuit and reverse polarity protection prevents damage to the tester, vehicle, or battery from accidental misconnections. Auto temperature compensation ensures accurate results in extreme environments 14°F ~ 140°F(-10°C~60°C)."]