VDIAGTOOL V200pro V500 Automotive Power Circuit Probe 9-30V Car Electric Circuit Tester Oscilloscope/Injector/Relay Test

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Your Trusted Partner in Automotive Diagnostics Tools！

1.All Products in the VDIAGTOOL Direct Store are 100% Original and Authentic, Can be Checked Through The S/N.

2.VDIAGTOOL Direct Store has 24-hour Online Service and Professional Technical Support.Before purchasing, please send your car's brand, model, year and VIN to the seller to confirm whether your car is supported, or you can check whether it is supported on VDIAGTOOL Official Website:https://www.vdiagtool.com/support

3.VDIAGTOOL has Global Warehouses：AU、BR、CA、CN、SP、FR、MX、PL、RU、UK、USA,48-Hour Fast Shipping.

4. If you need to change to another language, you can send us the SN after receiving the device, and we will authorize it for you.

(The device S/N is on the back of the product)At present, the equipment has been upgraded, and customers can change the language themselves. If unable to operate, please contact customer service.

5.If you have any questions, you can contact the seller and we will solve it for you.If there is no problem after using the device, Leave a 5-Star Rating + Send a Picture.You can receive benefits, please inquire with customer service for details.

At VDIAGTOOL, we empower mechanics and car enthusiasts with high-precision, professional-grade diagnostic tools at competitive prices！

VDIAGTOOL V200PRO,a professional automotive tool and diagnostic tool,a professional 12V/24V automotive power circuit probe tester and circuit breaker finder, also a high-performance automotive circuit tester with relay tester, fuse tester, short and open circuit detection, wire tracing, and component activation functions.


It supports voltage, resistance, diode and continuity tests, equipped with a 40FT extended cable and complete safety protection, ideal for cars, trucks, RVs, tractors and marine vessels.

This VDIAGTOOL V500 circuit probe tester is an upgraded 9-30V all-in-one automotive circuit probe tester,Lifetime Free Update, integrating multimeter, oscilloscope, fuel injector tester, relay & fuse tester, component activation, and voltage tester in one device.

As a professional car circuit probe tester and car diagnostic tool, it works great for cars, trucks, motorcycles and boats, ideal for technicians and DIY users.

🏆 Why Choose VDIAGTOOL V500 Circuit Probe Tester?（PK Autel PS100/Ancel PB50 etc）

✅️Lifetime Online Upgrade

Enjoy free software updates for long-term use, keeping your V500 tool always up to date.

✅️Multimeter & Oscilloscope Function

This automotive circuit tester performs DC/AC voltage, resistance, continuity measurements and professional waveform analysis.

✅️Component Activation Test

Directly activate lights, motors, solenoids and other parts for fast on-vehicle diagnostics with this versatile circuit probe tester.

✅️Quick Polarity Test

Instantly identify positive and negative connections to avoid short circuits for safe and efficient car circuit testing.

✅️Fuel Injector Test

Quickly and accurately test injector status and work as a professional fuel injector tester for automotive repair.

✅️Relay & Fuse Test

Effectively check 4/5-pin relays and locate bad fuses in seconds, a key function of this power probe circuit tester.

✅️0–5V Power Supply

Simulate sensor signals or power low-voltage circuits for accurate testing with this multi-purpose voltage tester.

✅️Overload Protection

Safeguard the circuit tester and vehicle electronics during use for better safety.

✅️90° Foldable Screen & Floodlight

View data clearly even in dark engine bays, ideal for any automotive diagnostic tool user.

✅️LED & Buzzer Reminder

Get visual and audible alerts for faster diagnostics, making the VDIAGTOOL V500 highly efficient.

✅️Powered by Car Battery

No external power needed, making this car circuit probe more portable for on-site use.

✅️2.4" Color LCD Screen

Sharp, clear display for easy reading on this professional automotive tester.

✅️Sturdy Case & 9 Language Support

Durable carry case with 9-language menu for global users of this complete car diagnostic tool.


🏆 VDIAGTOOL V500 Automotive Tester: Practical Design Function

✅️90° rotating screen

The main screen of VDIAGTOOL V500 circuit diagnostic tool can be rotated 90°. No matter from which angle, you can observe the circuit data on the screen 360° without blind spots, so that you can focus on analyzing circuit faults with this professional circuit probe tester.

✅️Built-in flashlight

This V500 power probe tool has a built-in flashlight, making it easy to perform car circuit testing and diagnosis even in dark environments.

🏆VDIAGTOOL V500 Car Electric Circuit Tester：6-in-1 Multimeter mode

✅️Voltage Measurement

Accurately measure DC voltage with max/min recording capability on this professional automotive circuit tester.

✅️Resistance Testing

Precisely measure resistance values for in-depth circuit analysis using this versatile circuit probe tester.

✅️Diode Test

Perform diode functionality tests with clear voltage readings, ideal for comprehensive car circuit testing.

✅️Current Measurement

Monitor current flow for electrical system analysis with this high-precision power probe circuit tester.

✅️Frequency Detection

Measure signal frequency for sensor and ignition system testing as a powerful automotive diagnostic tool.

✅️Polarity Identification

Automatic positive/negative detection with visual LED indicators, making the VDIAGTOOL V500 easier and safer to use.


🏆 VDIAGTOOL V500 Automotive Tester：One Click Smart Test

Automatic Polarity Detection

✅️Positive Polarity: Instantly displays voltage readings

✅️Negative Polarity: Automatically switches to resistance measurement with audible buzzing alert

✅️Smart Sensing: No manual range selection or mode switching required for this smart circuit probe tester

Dual-Mode Display

✅️Voltage Mode: Clear digital voltage display when detecting positive polarity

✅️Resistance Mode: Automatic resistance measurement with continuity buzzing

✅️Visual & Audible Feedback: Combined LED indicators and buzzer alerts for efficient automotive circuit testing

🏆VDIAGTOOL V500 Car Circuit Diagnostic Tools：Oscilloscope Function

Parameter range！

✅ Frequency Measurement Range: 10Hz-1000Khz

✅ Waveform display: 10Hz-100Khz.


Oscilloscope Function！

✅ Visual Fault Diagnosis

(Circuit Tester Power Probe)

For complex circuit issues, digital readings alone can’t show dynamic signal changes.
This car circuit probe tester’s oscilloscope mode visualizes signal waveforms, letting you quickly spot circuit abnormalities like distortion or attenuation for accurate car diagnostics.

✅ Detect Transient Problems

(Circuit Probe Tester)

Transient faults (instant voltage spikes, pulse interference) often evade static tools like multimeters.

As a premium voltage automotive circuit tester, the V500’s oscilloscope captures these transient signals in real time, detecting power fluctuations and unstable signals.

✅ Frequency Analysis

(Automotive Tester)

This automotive tester not only displays voltage/current waveforms, but also measures signal frequency and period.

Ideal for debugging oscillatory/clock circuits, it helps car diagnostic tool users accurately diagnose circuit frequency characteristics.

🏆 VDIAGTOOL V500 Diagnostic Tools: Component Activation

Lighting Systems！

✅️Headlights, taillights, and signal lights

✅️ Interior dome lights and dashboard illumination

✅️Auxiliary lighting and LED bars

✅️ Brake lights and reverse lights


Motorized Components！

✅️Power window motors

✅️Windshield wiper motors

✅️Seat adjustment motors

✅️Mirror adjustment motors

✅️Fuel pump motors


Solenoid-Operated Devices！

✅️Transmission shift solenoids

✅️Valve solenoids

✅️Locking mechanisms

✅️Hydraulic control solenoids


AC System Components！

✅️AC compressor clutches

✅️Blower motor fans

✅️AC control valves

✅️Ventilation actuators


Cooling System Parts！

✅️Radiator cooling fans

✅️Electric water pumps

✅️Fan control modules

✅️Temperature sensors


Additional Activations！

✅️Relay testing and verification

✅️Fuel injectors and ignition coils

✅️Electronic throttle bodies

✅️Various sensors and actuators

🏆 VDIAGTOOL V500 Circuit Probe Tester: Fuel injector test

There are 4 modes for injector testing:

✅️Mode 1: One 250 millisecond positive electrode;

✅️Mode 2: Cycle positive for 7 milliseconds, negative for 20 milliseconds in 1.4 seconds;

✅️Mode 3: Cycle the positive electrode for 4 milliseconds and the negative electrode for 10 milliseconds in 1.4 seconds;

✅️Mode 4: Continuous output of positive pole for 7 milliseconds and negative pole for 20 milliseconds.

🏆 VDIAGTOOL V500 Car Diagnostic Tool: Relay Test

Relay test on VDIAGTOOL V500 automotive circuit tester is mainly used to test the working status and performance of relays.

Relays are commonly used switching components in circuits, and their performance and working reliability directly affect the normal operation of the entire circuit.

This V500 power probe relay testing can bring the following conveniences:

✅️Detect the on-off status of the relay with circuit tester probe

✅️Determine the health status of the relay coil via car circuit tester

✅️Perform delay and response time test on power probe

✅️Accurately confirm contact performance using this professional relay tester automotive.

🏆 VDIAGTOOL V500 Automotive Power Probe Wide Compatibility

✅ Life Online Update — NO EXTRA FEES, NO SUBSCRIPTION

VDIAGTOOL V500 supports lifetime free software updates via Wi-Fi, no annual fees, no subscription costs, no hidden charges.

Always get the latest automotive circuit tester power probe functions.

✅Supports Car models

Cars、SUVs、Trucks、Motorcycle、Boats、Bus、Excavator

(No restrictions on year or model）


✅Wide measurement range

Operating Voltage: 9V - 30V DC

Voltage Measurement Range: 2mV-100V

Resistance Measurement Range: 0-10MΩ

Current Measurement Range: 2mA-25A

Frequency Measurement Range: 10Hz-1000Khz

Waveform display: 10Hz-100Khz

Operating Temp: 0℃-50℃/32°F-122°F

Working Environment Temp: 0℃-50°C/-32°F-122°F

Storage Temp: - 20°℃-70°C/-4°F-158°F

🏆 VDIAGTOOL V500 Probe Tester Supports 9 languages

✅️English✅️Chinese✅️French,✅️Spanish✅️German✅️Russian✅️ Italian✅️Portuguese,✅️Polish

⚠️Language can be freely switched without authorization!

🏆 VDIAGTOOL V500 Automotive Diagnostic Tool Product List

✅️V500 Main Unit × 1

✅️Probe Tip × 1

✅️Alligator Battery Clip × 1

✅️ Fine Probe Tip × 1

✅️Probe Tip Extension Cable × 1

✅️Wire Piercing Probe × 2

✅️Banana to Banana Plug Test Lead × 2

✅️Fuse × 3

✅️Banana Plug to Alligator Clip × 1

✅️✔ User's Manual × 1