Features: The KONNWEI BK200 6V 12V 24V car battery tester effectively analyzes and reads key vehicle data including voltage, internal resistance, cold cranking amps, battery health, and charge status. It delivers accurate results, calculates cold cranking capability and battery aging level, enabling faster and more precise vehicle diagnostics and repair. Accurate testing: Capable of precisely measuring battery resistance, CCA, battery health, charge status, voltage, and overall battery performance. LED indicator: Red light indicates connection in progress; blue light confirms successful connection. Integrated wire and device design: Ensures a stable connection to prevent disconnection; durable wiring resists breakage. Copper-plated alligator clip: Features pure copper plating, wide jaw opening, strong grip, and improved conductivity for more accurate readings. Compatible with 6V, 12V, and 24V batteries: No need to remove the battery—direct on-vehicle testing is supported. Multiple language support: Offers up to 13 selectable languages. Specifications: Brand: KONNWEI Model: BK200 Color: Black or Silver (optional) Material: ABS Voltage: 6V / 12V / 24V Bluetooth: Compatible with Android 5.0 or higher and iOS 8.0 or higher Languages: English, German, French, Japanese, Korean, Dutch, Russian, Spanish, Italian, Portuguese, Polish, Persian, and system default language Application: Suitable for standard lead-acid, AGM (flat and spiral), and gel batteries used in cars, motorcycles, lawn mowers, and boats App Functions: Standard Test, Start Test, Charge Test, Settings Supported Devices: Android and iOS smartphones, iPad Package Dimensions: 16 x 8 x 4.5 cm Package Weight: 153g Package List: 1 x Car Battery Tester Kit