Battery health test: Utilizes the latest testing algorithm to scan the battery and deliver results in seconds, including State of Health, State of Charge, Internal Resistance, and Testing Conclusion (Poor, Good, Great). Fast and accurate detection: Equipped with a high-quality integrated chip, the battery health tester achieves a 99.5% accuracy rate. Advanced conductivity test technology enables results to be displayed on the LCD screen in just 3 seconds for precise battery health data. Simple operation: Connect the smart clip of the on-board digital battery tester to the car battery to simultaneously check voltage, SOC, power, internal resistance, and discharge capacity. Overvoltage and reverse polarity protection: Features low-frequency signal testing to protect the battery during use. Premium copper clips provide reverse polarity protection and prevent sparking, ensuring a stable and secure connection. Essential battery assistant: This car battery analyzer comes with a dot matrix LCD display, allowing you to diagnose battery health issues anytime and anywhere. Color as shown. Material: Plastic. Package contents: 1 x Battery tester Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.