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ACARTOOL is a proud authorized distributor of multiple leading automotive diagnostic brands. All products we sell are 100% genuine and brand-new, sourced directly from manufacturers to guarantee authenticity and quality.
With over 15 years of experience in the automotive diagnostic industry, we have established strong relationships with major brands, ensuring our customers receive reliable products, timely updates, and professional support worldwide.
To view our brand authorization certificates, please visit our About Us page.
Shop with confidence knowing that all our products are brand-authorized, authentic, and backed by years of expertise.
We offer worldwide shipping and operate multiple local warehouses in the United States, Canada, Europe, the United Kingdom, Mexico, and Brazil, allowing us to provide faster and more reliable delivery with reduced transit times.
Orders are typically processed within 24 hours on business days (Monday–Friday). Based on product availability and your delivery address, we will ship from the nearest available warehouse to ensure the quickest delivery time.
Please note that if your shipping address is classified as a remote area by the carrier, an additional remote delivery surcharge may apply. This surcharge is not covered under our free shipping policy.
Last Update: 2025/11/09
Return & Exchange Policy
Most products in brand-new condition—free from scratches or damage caused by the customer—can be returned or exchanged within 30 days of receipt. If the return or exchange is due to our error (for example, you received a wrong or defective item), we will cover the return shipping cost.
To initiate a return or exchange, simply contact our customer support and let us know the reason. We will guide you through the process and handle your request as quickly as possible. Once we receive and process your return or exchange, you will receive an email notification.
Refunds are usually processed within four weeks after we receive your return, though in many cases you may receive your refund sooner. This timeframe includes 5–10 business days for the carrier to deliver your return to us, 3–5 business days for us to process it, and 5–10 business days for your bank to complete the refund.
Last Update: 2025/11/09
We currently offer duty-free shipping to the US, EU, UK, Mexico and Canada.
If you are charged any import duties or customs fees upon delivery, don’t worry — we’ve got you covered. Simply provide us with a copy of the payment receipt or a clear photo as proof, and we will reimburse the full amount once your package is delivered.
Please note: Certain special promotions and clearance items are not eligible for duty reimbursement.
Last Updated:2025/11/25
All-in-One Power Probe Circuit Tester for Serious Electrical Diagnostics
Unlock next-level vehicle diagnostics with the VDIAGTOOL V500, a professional-grade 6-in-1 tester built to handle all your automotive electrical troubleshooting needs—from fuel injectors to relays, from sensor signals to blown fuses.

The V500 combines oscilloscope, multimeter, relay tester, and power circuit probe into one device. It covers AC/DC voltage, diode, resistance, current, frequency, polarity, and more—eliminating the need for multiple tools.

Visualize voltage and signal behavior in real time. With 4 waveform arguments—voltage, resistance, frequency, and duty cycle—you’ll quickly identify sensor and actuator faults.

Deliver 4 adjustable pulse modes to test injectors directly (0–260V support). Efficiently check injector performance and maximize cleaning effects with fuel system cleaners—no trip to the shop needed.
Simulate real-world working conditions to activate lights, relays, motors, fans, wipers, injectors, and more using 3 signal modes: Momentary, Latch, and Pulse—ideal for pinpointing faulty components.

Quickly test 4-pin and 5-pin vehicle relays and locate blown fuses in seconds. Also check trailer light functionality before your next road trip—helping prevent unexpected electrical failures.

The intelligent tester auto-detects voltage, resistance, and polarity in a single step—saving time and reducing guesswork. Red/Green LED indicators and buzzer provide immediate polarity feedback.
Features a 90° foldable color screen for confined spaces, integrated flashlight for dark work areas, and online updates with support for 9 languages—perfect for technicians and DIYers alike.

Working Voltage: DC 9V–30V
Display: Color LCD, foldable screen
Signal Modes: Moment, Latch, Pulse
Languages: 9 supported
Accessories: Probe tip, extension cord, alligator clips, user manual
1 × VDIAGTOOL V500 Unit
1 × Extension Cable
1 × Probe Tip
1 × Fuse Set
1 × Carrying Case
1 × User Manual

Diagnose electrical shorts or opens
Test sensors, fuses, relays, trailer lights
Activate and simulate components
Check continuity, poor grounds, or bad circuits
Perform waveform diagnostics with oscilloscope mode

✅ 3-Year Warranty
✅ Lifetime Technical Support
✅ Free Global Express Shipping
✅ Friendly After-Sales Support
✅ No Import Duties or Hidden Fees
If you have any questions, reach out to us anytime at: techsupport@acartool.com
Excellent product, fast delivery and in excellent condition. I have used it and it meets the needs for which it was purchased! !
Everything is fine
Very satisfied
I am new to shopping on AliExpress. I had doubts regarding shipping, payment, etc.... To my surprise (The Seller) quickly contacted me through WhatsApp, informing me about the shipment and answering my questions. SELLER 100% RECOMENDABLE.....!!!!!! Very much but very satisfied with the attention of the product and the product.... Excellent price quality ratio, product very well achieved....!!! Yes, I used it in the car and also used it to repair a neck massager.... ! !! Very versatile tool. The uncomfortable and unpractical thing is that the thickness of the battery connection cable is too thick. I understand that it is for protection and durability. Thank you Vdiagtool for the tool and service provided. !
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
Orders are processed within 24 hours on business days after payment is confirmed.
Shipping warehouses: We have warehouses in the U.S., Canada, U.K., France, Brazil, and other countries. We will ship from the warehouse closest to your delivery address based on stock availability.
Estimated delivery time:
You may request a return/exchange within 30 days of delivery. We recommend keeping the shipping box and product packaging until you confirm you will keep the item.
We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
For return/exchange due to personal reasons, the buyer is responsible for return shipping fees.
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
👉 For full details, see our Shipping Policy , Returns & Exchanges at the bottom of the page.
💬 Feel free to contact us anytime if you have questions. We are committed to timely and smooth communication with our customers — your satisfaction is our top priority.
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