1、It is an upgradeable circuit tester, it is a tool used to quickly test all 9V‑30V electronic systems. Test time is greatly shortened, convenient, fast and smarter. 2、2.4‑inch color LCD display, 9‑Grids navigation display menu, intelligent identification of voltage/resistance. 3、0-5V adjustable power supply, intelligent circuit breaker protection (adjustable overload), network online upgrade. 4、Multimeter mode, including measure voltage, resistance, diode, continuity, current and frequency. 5、Support multiple languages, including English, Swedish, German, Dutch, Vietnamese, Polish, Turkish, etc. Item Type: Electrical Circuit Power Tester Kit Material: PlasticDisplay: 320x240 DPI TFT true color display Working Temperature: 0-60℃ (32-140℉) Storage Temperature: 40-70℃ (-40-185℉) External Power Supply: 12V or 24V powered by battery Minimum Working Voltage: 9V Maximum Working Voltage: 30V Maximum Measuring Voltage: 100V Minimum Measuring Voltage: 0.1V Resistance Measurement Range: 1 ohm-200K ohm Current Measuring Range: 0-18A Maximum Continuous Current: 18A Functions: 1. Intelligent identification of voltage/resistance 2. Multimeter mode (measure voltage, resistance, diode, continuity, current and frequency) 3. Relay test 4. Injector test 5. Diode test 6. Oscilloscope function 7. 0-5V adjustable power supply 8. Activation of vehicle components 9. Positive and negative polarity test 10. Intelligent circuit breaker protection (adjustable overload) 11. Screen style background optional 12. Network online upgrade 13. Built-in Multi Lingual Languages: English, Swedish, German, Dutch, Vietnamese, Polish, Turkish, Spanish, Portuguese, Italian, French, Filipino, Finnish, Indonesian, Malaysian, Greek, Russian, Japanese , Arabic, Thai, Lao, Cambodian, Korean How to use: Connect the clip and probe cable to the tester, and connect the clip to the car battery. 1 x Detector 1 x Clip 2 x Connection Line 3 x Test Probe 1 x CD 1 x Manual 1 x Toolbox