VDIAGTOOL V200PRO 12/24V Automotive Power Circuit Probe Tester 40FT/12M Cable Relay Fuse Tester Fuel Injector Short Circuit Test

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🏆VDIAGTOOL V200PRO 12V/24V Automotive Power Probe Circuit Tester

✔️Automotive Logic Probe✔️Diode Test✔️Polarity Test✔️Continuity Test✔️Resistance Test✔️Relay Test✔️Fuse Test✔️Injector Test✔️Short Circuit Test✔️Poor Ground Test✔️Tracing Wire / Cable✔️AC/DC Voltage Test✔️Activating Components✔️Sensor / Signal Circuit Test
✔️Open / Breaker Circuit Test✔️Trailer Lights

As a practical automotive probe and 12v circuit tester, it is equipped with a 40FT long extension cable and full safety protection. Widely applicable to cars, trucks, RVs, tractors and marine vessels. We provide complete VDIAGTOOL V200pro kit.

🏆Why Choose VDIAGTOOL V200PRO Automotive Circuit Tester?

This professional circuit probe tester, also a car circuit tester and automotive electrical circuit tester, integrates 12+ functions in one portable tool, replacing multimeters, circuit finders and relay testers.

✔️ Circuit Tester & Probe-Circuit Tester

Full-range AC/DC voltage, resistance, diode, continuity, and polarity testing with this automotive circuit tester.

Others automotive circuit probe tester:Only basic functions, general accuracy, can only do simple circuit detection

✔️ Relay & Fuse Tester

Works as dedicated relay tester and fuse tester to quickly check 4/5-pin relay and blown vehicle fuses！

Others relay and fuse tester: No professional relay test, only basic fuse check, no complete fuse finder function

✔️ Short/Open Circuit Finder

As professional short circuit finder & wire tracer, this automotive circuit tester locates hidden broken wires without dismantling wiring harness.

Others automotive circuit breaker finder: No wire tracing function, can't locate hidden wires or open circuits

✔️ Component Activation


V200PRO can activates lights, motors, fuel injectors, and solenoids for functional testing with this power circuit probe tester.

Others automotive power probe: Only basic component activation, no professional fuel injector test, limited functions

✔️ Poor Ground & Trailer Light Test

Diagnose grounding issues and trailer lighting systems with ease using this automotive circuit probe tester.

Others automotive circuit tester: Simple protection mechanism, unstable performance, can't handle complex trailer light test

✔️ Sensor/Signal Circuit Test

Verify sensor signals and troubleshoot DTC errors efficiently with this car diagnostic tool.

It acts as professional automotive logic probe to accurately capture weak sensor signal and locate circuit fault source.

Others automotive diagnostic tool: No advanced signal analysis, only basic code reading, can't locate root cause.

✔️ Electronic Circuit Tester Function

Complete electronic circuit testing for car electrical wiring, short and broken circuit fast detection.

🏆 VDIAGTOOL V200PRO Circuit Tester Parameters

V200Pro Main Unit*1

User's Manual *1

Bigger Cigarette Lighter Adapter *1

Battery Hookup Clips *1

Probe Tip *1

Extension Cable (20ft.) *1

Rugged Blow Molded Case *1

Power Assist Cable *1

✔️VDIAGTOOL V200PRO Circuit Probe：

DC voltage range: 0-65V + 1 digit

Resistance range: 0-100 kΩ

Frequency: 0Hz-10Khz

Rating current: 1-10 Amp

✔️VDIAGTOOL V200PRO Breaker Finder：

DC voltage range: 6-24V

✔️VDIAGTOOL V200PRO Power Probe:

Operating Temperature: 0-60°C (32 to 140°F)

Storage Temperature:-40-70°C (-40 to 185°F)

External Power:12/24V Powered by Connecting to Vehicle Batter

✔️VDIAGTOOL V200PRO Breaker Finder:

Operating Voltage:9V (Powered by Internal 9V Battery)

Operating Temperature:0-60°C (32 to 140°F)

Storage Temperature:-40-70°C (-40 to 185°F)

🏆VDIAGTOOL V200PRO Electric Circuit Tester MODE 1: 4 Working Modes

VDIAGTOOL V200PRO Electric Circuit Tester MODE 1

✔️DC Voltage Test:

DC voltage detects the voltage value of the circuit under test with a resolution of 0.1 volt, perfect for power supply test on vehicle electrical circuits.

✔️AC Voltage Test:

AC voltage detects the Max. Voltage, the Min. Voltage and Frequency of the circuit under test.

✔️Resistance Test:

Detect the resistance between the circuit probe tip and auxiliary ground lead. Determines whether an electrical circuit is complete or broken and if the resistance of a component matches the manufacturer's specification.

✔️Diode Test:

Detect the operation of the diode assembly and determine if it is conducting. Display the actual forward voltage of the diode when its conducting current.

✔️NOTE:

When power up this probe tester kit, press the power switch first, then contact the tip with the component, the operation life of power switch will be extended.

✔️2 Charging Modes：

be powered by the car's battery

be powered by cigarette lighter, no extra battery or cable required.



🏆VDIAGTOOL V200 PRO Aautomotive Tester Quick Self-Test —Instant Polarity & Safety Checks

No more guesswork when connecting your probe—this built-in self-test feature makes circuit diagnosis safer and faster.

RED Light On → Positive Circuit

✔️Instantly identify positive connections

✔️Avoid reverse polarity damage to your tool or vehicle

GREEN Light On → Negative Circuit

✔️Clear visual feedback for negative grounding

✔️Eliminate the risk of short circuits

Overload Protection Buzzer

✔️Audible alerts for overcurrent or voltage spikes

✔️Auto-shutoff to protect your device and the vehicle

✔️Work confidently even in high-risk electrical environments

Why This Matters for You

✔️Save Time: No need for a multimeter to check polarity—get results in seconds

✔️Stay Safe: The buzzer and color-coded lights prevent costly mistakes

🏆 VDIAGTOOL V200PRO Automotive Breaker Finder MODE 2: Locating breaker point

No more hunting for hidden electrical issues—this tool gives you the power to trace and repair circuits quickly, even in the most complex wiring harnesses.

✔️ For maximum detection range, position the breaker finder probe perpendicular (90°) to the wire, either above or below it. This ensures you pick up the strongest signal.

✔️ Breaker Finder DC Voltage Range: 6–24V

✔️ Find Breaker Point/Open Circuit

Locate exact breaker tripping points and open circuits instantly，no more trial-and-error fuse testing,save hours of troubleshooting time with this circuit breaker finder.

✔️ Tracing Wire/Cable

Trace wires through walls, panels, and harnesses without disassembly,identify short circuits and damaged cables with precision,perfect for hidden or hard-to-reach wiring with this cable finder.

🏆 VDIAGTOOL V200PRO Relay Electric Power Circuit Probe Tester :Component Activation & Sensor Signal Circuit Test

No more guessing if a component is faulty—this tool lets you activate parts directly, saving you time and avoiding unnecessary replacements.

✔️Fuel Injector Test

Activate injectors to check for proper spray patterns

Identify clogged or faulty injectors without removing them

✔️Relay Test

Trigger relays to verify they click and function correctly

Eliminate the need for manual jumper wires with this relay power tester.

✔️Car Light Test

Power up headlights, taillights, and turn signals instantly

Confirm if the issue is the bulb, wiring, or switch

✔️Work in the Dark

Built-in LED light illuminates engine bays and dark corners

No need for a separate flashlight—keep both hands free for testing

✔️Two Testing Modes

Handheld Mode: For quick bench tests of components

Vehicle Mode: Test parts while they’re still installed in the car

Why This Is a Game-Changer

✔️Save Time: No more removing and reinstalling parts to test them

✔️Avoid Mistakes: Stop replacing good parts due to bad guesses

✔️Work Faster: Get accurate results in seconds, even in low light

🏆 VDIAGTOOL V200 Pro Circuit Tester Universal Electrical Diagnostic Powerhouse Testing

✔️Multi-Vehicle Compatibility

Works beyond cars: Automotive, RVs, Tractors, Trucks, Boats (12V/24V systems)

Complete electrical circuit testing for any vehicle type

✔️Dual-Function Modes

• Mode 1: Automotive Circuit TesterFull system diagnostics for 12V/24V sources

• Mode 2: Circuit Breaker FinderWide 6-42V DC range for heavy-duty vehicles

🏆 VDIAGTOOL V200 Pro Smart Automotive Logic Probe Product List

V200Pro Main Unit*1

User's Manual *1

Bigger Cigarette Lighter Adapter *1

Battery Hookup Clips *1

Probe Tip *1

Extension Cable (20ft.) *1

Rugged Blow Molded Case *1

Power Assist Cable *1

Breaker Finder *1


In summary, the VDIAGTOOL V200PRO is a professional 12V/24V automotive circuit probe tester and circuit breaker finder kit. It works as a power probe tester, automotive logic probe and automotive current tester, and serves as a reliable automotive probe, 12v circuit tester, car circuit tester and automotive electrical circuit tester. It supports power supply test, short/open circuit detection, fuse & relay testing, fuel injector inspection and wire tracing.