Component Activation

Instantly test lights, relays, motors, and power components. Car lights, fan, or relay failure? Instantly pinpoint the issue. Simply touch the wire—no stripping, bridging, or risk of blowing fuses.

Continuity Test

4-in-1 Smart Probe——Voltage, resistance, diode, and continuity—one touch for comprehensive data.

Grounding Test

Simply connect the ground wire and touch to easily test bulbs, fuses, grounding status, and plug polarity—no disassembly required.

Short Circuit Track

Use the metal probe of the circuit tester to check the circuit surface point by point. When the fault point is found, the indicator light will light up

Quickly Fix Trailer Troubles

The fastest solution for testing trailer circuits, lights, and grounding.

Power supply: 12V battery or DC 12V

Rated input voltage: 6-24V DC

Limit input voltage: 6-30V DC

Measured voltage range: 0-80V DC

Pulse frequency counting range: 1HZ-100KHz

Overload protection: 8A

Just check the circuit surface point by point through this circuit probe tester metal probe, when the fault point is found, the indicator light will light up

Just refer to the easy diagrams for your vehicle's components activation

Instantly detect positive and negative terminals—no waiting required—to reduce repair time.

Component Activation

Continuity Test

Grounding Test

Short Circuit Track

Quickly Fix Trailer Troubles

Power supply: 12V battery or DC 12V

Rated input voltage: 6-24V DC

Limit input voltage: 6-30V DC

Measured voltage range: 0-80V DC

Pulse frequency counting range: 1HZ-100KHz

Overload protection: 8A

Just check the circuit surface point by point through this circuit probe tester metal probe, when the fault point is found, the indicator light will light up

Just refer to the easy diagrams for your vehicle's components activation

Instantly detect positive and negative terminals—no waiting required—to reduce repair time.

Product description

We are specializing in automotive tools about 10 years, providing practical, innovation tools to solve engine problems and save budget.

offers 100% satisfied serves and all day online quick response. Please feel free to let us know if any problems.

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