1. Display: LED light 2. Current: 12V/10 mA, 24V/30 mA 3. Material: ABS 4. Temperature: -35-50 degrees Celsius 5. Power: 0.5W 6. Working voltage: 6-30V 7. Clip: copper plated 8. Cable length: 36 cm 9. No need to open the engine hood to connect the battery, you can test while sitting in the car; 10. Support 12V cars and 24V diesel cars, no need to choose intelligent recognition; 11. Voltage test range: 9V~30V can be tested; 12. Reverse connection protection function, wrong operation of the positive and negative poles will not damage the battery and equipment; 13. Two test modes can be selected: start-up test (load test) and car battery test; 14. Accurate test results, intuitive display, and improve work efficiency.