KINGBOLEN KBL520 Car Digital Load Battery Tester 1. Mini USB interface, used for software upgrade, no need to install driver, easy to operate. 2. With one-key screen capture function, it is used to capture and save important data, which is fast and convenient. (Only 10 pictures can be stored) 3. Ripple test: Test the charging system of the engine. The smaller the waveform floating, the more stable the voltage, indicating that the battery is in good condition. 4. High-definition TFT LCD display with backlight function. 5. With protection function, if the positive and negative polarities are wrongly connected in time, the device can start normally, and the device and battery will not be damaged. 6. Real-time monitoring of battery status, to understand the current floating size of battery voltage, with automatic storage and playback functions. 7. Four test function options: battery test (lifetime, voltage, CCA, internal resistance), startup test, charging test, load test 8. 11 languages to choose from, better translation for local users: English, French, Spanish, Italian, Russian, German, Portuguese, Polish, Japanese, Simplified Chinese, Traditional Chinese 9. Screen size: 2.8 inch TFT color screen 10. Connection method: alligator clip regardless of polarity 11. Test range: 6V12V (100-2000CCA) 12. Working voltage: 5-32V 13. Material: PVC 14. Dimensions: 190.6x90.2x26mm