Automotive Circuit Tester 12V/24V Power Probe with Breaker Finder

Find wiring faults faster with one automotive circuit tester built for 9V-30V DC vehicle systems. It combines multimeter, oscilloscope, relay testing, injector testing, wire tracing, and breaker finding so you can diagnose more without switching tools.

Why This Circuit Tester Saves You Time

✅ Diagnose electrical faults faster with multiple test modes in one tool.

✅ Track down shorts and open circuits with less guesswork.

✅ Reach more areas easily with a 20FT / 6M cable.

✅ Read results clearly on a 2.36-inch color screen with 90° rotation.

✅ Test more vehicle types confidently across cars, trucks, boats, and more.

✅ Work more safely with overload and reverse polarity protection.

You can measure voltage, resistance, diode, current, and frequency in multimeter mode, then switch to oscilloscope mode for waveform analysis when signal issues need a closer look. The tester also checks positive and negative terminals, supports component activation, and outputs 0-5V power for signal circuit testing.

Built for troubleshooting real vehicle problems, it helps you test relays, fuel injectors, sensors, and wiring harnesses. It is powered by the vehicle battery and supports electrical circuit testing up to 18A, making it practical for cars, SUVs, motorcycles, trucks, buses, ships, and boats.

The included accessories give you more ways to test: probe tip, fine probe tip, extension cable, wire piercing probes, test leads, fuses, relay test cable, alligator battery clip, Type-C data cable, and manual. Online updates, 9-language support, and a built-in flashlight add convenience during diagnosis.

Clear screen layout makes readings easier to follow.

Multiple test functions reduce tool changes during diagnosis.

Rotating display helps you view results at different angles.

Long cable gives you better reach around the vehicle.

Waveform display helps reveal signal circuit problems.

Relay and injector tests support targeted troubleshooting.

Wire tracing helps locate hidden faults in harnesses.

Protection features add confidence during live testing.

Included probes expand your testing options immediately.

Battery-powered operation keeps setup simple in the field.

Accessory kit supports faster checks across common circuits.

Works across many vehicle types for broader diagnostic use.

Get faster, more accurate vehicle electrical diagnosis with one versatile tester.