Welcome To VDIAGTOOL

Package List

118″ Spring Wire
PVC Electrical Tape
User Manual

VDIAGTOOL P60 Car Voltage Tester | 3-70V DC Circuit Diagnostic Tool-Your ultimate car circuit troubleshooting tool

VDIAGTOOL P60 DC 3-70V Digital Tester is a versatile tool featuring a digital display and dual-color LED polarity indicator. It combines four key functions: rapid self-test, polarity detection, voltage measurement, and continuity testing.

P60 support bidirectional test flexibly handles various scenarios. P60 built-in backlit display for clear readings in low light. It also come with overvoltage protection and accurate measurement of ±0.1V, the is perfect for both professionals and DIYers, helping quickly diagnose issues in vehicle circuits, batteries, fuses, and relays.

Automotive circuit tester that’s better than a multimeter

Wide Voltage Range DC 3–70V – Covers cars, trucks, motorcycles & industrial circuits

⚖️Easy to operate: Single-handed operation with no complex setup required. Complete measurements with one hand—over 3 times faster than a multimeter.

⚖️Easy for Beginners: Requires no specialized circuit knowledge, suitable for everyone from DIY enthusiasts to professional technicians.

⚖️Dual-Color LED Polarity Indicator: Red indicates positive, green indicates negative—clear at a glance without staring at readings.

⚖️Integrated Multi-Scenario Testing: Handles voltage, polarity, continuity, and circuit faults in one go, meeting diverse automotive repair needs.

⚖️20S rapid diagnosis: From connection to result display in under 20 seconds, significantly reducing repair time and boosting efficiency.

⚖️Built to last: Shockproof and water-resistant design for workshop environments, outlasting fragile precision multimeters.

⚖️Superior value: At just 1/3 the price of a multimeter, it handles high-frequency automotive circuit testing demands.

Quickly locate circuit faults | Precisely measure voltage | Multi-functional, compatible with various vehicles

VDIAGTOOL P60 DC 3-70V Digital Voltage Tester makes every circuit test simple! This high-performance tool not only provides accurate voltage measurements but also quickly detects various electrical problems such as polarity, continuity, fuses, and relays. Suitable for cars, motorcycles, trucks, boats, and other vehicles. Its multiple core testing capabilities and practical design details are sure to win you over:

What can the P60 do for you?

1. Quick Voltage Reading – Provides instant and accurate voltage readings for rapid diagnostics.

2. Continuity Test – Tests circuit continuity to ensure fault-free operation.

3. Clear Polarity Indication – Dual-color LEDs indicate positive and negative terminals, ensuring accurate circuit polarity identification.

4. Battery and Generator Test – Easily checks battery charge and generator status to ensure the vehicle’s electrical system is functioning correctly.

5. Trailer Light and Fuse Test – Designed specifically for trailer circuit and fuse testing to prevent circuit faults.

6. Relay and Socket Check – Quickly checks relays and sockets to prevent electrical problems.

Practical Design Features:

1. Flexible 118-inch Spring Cable – Sufficient length for operation in tight spaces, offering high flexibility.

2. Anti-loss Needle Protective Cap – Safety design to prevent needle loss after use.

3. Sharp Stainless Steel Probe – High-precision probes for accurate circuit contact.

4. High-strength grip – Provides a comfortable grip and reduces operator fatigue.

5. Strong alligator clips – Securely clamp circuits, ensuring stable connections.

6. Includes PVC electrical tape – Comes with practical tools for easy circuit repair.

Wide Compatibility:

1. Suitable for all 3-70V DC electrical systems in motorcycles, cars, SUVs, heavy trucks, RVs, yachts, etc.

2. Can be used to test circuit problems in batteries, generators, fuses, relays, trailer lights, grounding circuits, etc.

3. The best diagnostic partner for DIY enthusiasts in home garages and professional auto repair technicians and electricians.

Quickly locate various circuit problems

🔥Check Before Wiring – Clear Polarity Identification: Dual-color red/green LED indicators instantly show positive and negative circuits, preventing wiring mistakes.

🔥Engine Won’t Start – Battery & Alternator Diagnostics: Accurately measure voltage to quickly assess your charging system and pinpoint issues.

🔥Trailer Lights Not Working – Fast Circuit & Fuse Check: Instantly detect problems in trailer circuits and fuses, saving time on troubleshooting.

🔥Flickering or Non-Working Lights – Socket & Relay Testing: Identify faulty connections or damaged relays in your lighting system with ease.

🔥Intermittent Electrical Faults – Hidden Short & Break Detection: Quickly locate concealed shorts or broken wires in harnesses, minimizing disassembly.

🔥Electronic Device Malfunctions – Grounding Inspection: Detect poor grounding in seconds to resolve circuit faults caused by bad connections.

Precise Reading + Intelligent Feedback + Safety & Reliability

VDIAGTOOL P60 DC tester features a precise and intuitive reading system, displaying voltage values with an accuracy of ±0.1V. Its intelligent feedback and backlight design allow for quick and safe circuit diagnostics in various environments.

✅ Precise Voltage Reading

1. Measurement accuracy reaches **±0.1V**, displaying precise values such as 12.5V, providing reliable data for circuit diagnosis.
2. Supports 3-70V DC voltage, covering the low-voltage circuit systems of most automobiles, motorcycles, and trucks.

💡 Intelligent Reading Feedback

0-3V: No display (Blank), indicating low voltage or no voltage.

3-70V: Normal voltage value displayed, such as “12.5”, indicating the circuit voltage is within the normal range.

70V+: Screen displays “OL”, indicating the voltage exceeds the range, triggering overvoltage protection.

Flashing/Unstable Readings: Indicates poor contact or intermittent circuit faults, helping to locate loose connections.

Bidirectional Polarity Testing —Positive/Negative Instantly Identified

VDIAGTOOL P60 employs a dual-color red/green LED bidirectional polarity detection system. The moment the probe contacts the circuit, it automatically identifies positive and negative terminals:
Red light = Positive terminal, Green light = Negative terminal. No mode switching or repeated testing required.

True bidirectional operation with no orientation restrictions: Accurate polarity identification regardless of probe contact angle

✅ 1-second visual feedback: Faster and more intuitive than multimeter readings, error-proof even for beginners

✅ Effectively prevents reverse connection damage: Ideal for high-risk scenarios like tow truck wiring and circuit modifications

✅ Enhanced detection stability: Independent dual LED indicators deliver zero-delay, no-blank-signal performance

🛠️ In complex automotive circuits, the P60 enables simultaneous voltage and polarity detection with a single touch—no guessing, no repositioning. This dramatically boosts repair efficiency while significantly reducing the risk of equipment damage from incorrect polarity connections.

Wide Range of Use Cases

VDIAGTOOL P60, with its 3-70V wide voltage range and durable design, covers all 3-70V DC electrical systems from motorcycles to heavy vehicles. Whether for DIY enthusiasts, auto repair shops, or professional technicians, it easily handles various electrical issues.

Smart Design, Practical Accessories

Fine-tipped stainless steel probe：
Effortlessly pierces insulation layers for precise testing in confined spaces without stripping wires.

118-inch extendable spring cable：
Freely retracts without tangling, offering greater operational reach for complex work environments.

Heavy-duty alligator clip + anti-loss probe cap：
Ensures stable contact for accurate readings while protecting probes and extending service life.

Non-Slip Grip：
Ergonomic design ensures steady hold and prevents slippage, enhancing operational stability.

ABS Waterproof & Shock-Resistant Housing：
Withstands humid, dusty automotive workshop environments for extended tool longevity.

Included PVC Electrical Tape：
Enables immediate insulation repair post-testing, delivering “Test + Repair” one-stop operation.