Multifunctional Automotive Test Light: Detects battery voltage and polarity, checks circuit continuity and short circuits, tests vehicle components (headlights, taillights, etc.), and locates grounding issues. Also repairs or tests circuits via bypass operation. Keep one handy at home for quick vehicle wiring and component diagnostics.
Brighter Headlights and Display: Dual front lights illuminate dark areas inside the vehicle when connected to the car battery. 5-meter extended cable reaches every corner of the vehicle. Digital acrylic display and polarity indicator provide intuitive status and voltage readings. Data remains clearly visible in dim lighting and direct sunlight.
Quick Component Testing: Control positive/negative voltage output via button-operated current probe and alligator clips. Test components like headlights offline or connect directly to vehicle circuits. This vehicle voltage tester supports bypass operation to test components without connecting to the original circuit or locate short circuits.
Ground Testing with Audible Alert Certain components require proper grounding via negative metal parts. The tester verifies ground integrity: a beep and green polarity indicator confirm good grounding, while a steady red indicator and silent beep indicate poor grounding. The buzzer sounds when the negative terminal makes good contact.
Wide Applicability: This vehicle-mounted tester is compatible with 0V-80V DC voltage, suitable for circuits or components (especially spark plugs) in cars, pickup trucks, SUVs, motorcycles, construction vehicles, and boats. When vehicle electrical systems malfunction, the voltage tester quickly detects and locates issues, providing drivers with a handy tool anytime!