Features:Automotive circuit system tester supports voltage test, resistance test, diode test, short circuit protecting, component activation and other functions with high practicality.Equipped with TFT color display, high clear icons and large font, easy to view. High-sensitivity probe helps you reach the hard-to-reach areas by hand more easily.Internally enhanced input protecting against reverse polarity, over-voltage protecting, protecting against poor test chuck contact, etc. for safer use.Support multiple languages, English, German, French, Spanish, Italian, Portuguese and Russian, you can choose according to your needs.Easy to operate and use, compatible with 12-24V vehicle, suitable for auto mechanics as well as home vehicle maintenance and repairing.