





VDIAGTOOL V210 Automotive Circuit Tester

VDIAGTOOL V210 Automotive Open Circuit/Short Circuit Tester is a circuit tool suitable for DIY enthusiasts, electricians and technicians. Powered by two 9V batteries, it assists in effortlessly locating open circuits, open connections, broken wires and leakage currents without damaging insulation, enabling cable fault tracing.
Key Functions
- Locating Short Circuit Safely
- Checking Open Circuit Quickly
- Tracing Wire Accurately

Wide Compatibility
1. Circuit Diagnosis
Works with 6–42V DC systems
2. Supported Models
- Automobiles
- Trucks
- Tractors
- Boats
- RVs
- …………….
3. Supported Circuit Fault Types
- Locate open circuit points
- Broken connections
- Broken wires
- Leakage
- ………………

Why Choose VDIAGTOOL V210 Automotive Circuit Finder
1. Locate Open Circuits
VDIAGTOOL V210 Open Circuit Detector comes equipped with transmitter and receiver LED indicators, which can instantly detect and alert you to open circuits. VDIAGTOOL V210 assists in quickly and accurately locating open connections, broken wires, leakage points, and even tracing cable routes via the built-in receiver’s Audible beep.
Note: Signal strength affects the volume of the Audible alert. During testing, position the probe close to the cable. Should the sound suddenly diminish, this indicates the presence of a fault point.
2. Check Short Circuits
VDIAGTOOL V210 Automotive Short Circuit Detector features a 6.7-inch flexible probe. By bending wires or connectors and listening for changes in the receiver’s tone, it assists in identifying intermittent circuit faults and easily accessing wires in congested areas.
Note: Audible signals may be affected by transmission distance, resistance values, shielding layers, and circuit complexity. To enhance detection accuracy, inspect circuits step-by-step and complete signal testing to precisely locate short-circuit points.
3. Wire Tracing
Easy to use by simply connecting the transmitter in series with the circuit or wire under test (e.g., in place of a blown fuse, across a connector, in series with an open wire, a light bulb socket, etc.), and scanning the circuit/wire with the tracer’s flexible probe to find the trouble spot.

User Guide
1. Select Mode
- TONE mode – Use for open circuit detection or wire tracing
- CONT mode – Use for continuity checks or short circuit testing
2. Connect Sensors
Attach the probes or clamps to the wire/cable being tested.
3. Diagnose
The tool will indicate breaks (open) or unintended connections (short).
4. Precautions for Use
- Signal strength affects volume: If the sound is low, try adjusting the probe position to find a stronger signal for accurate detection.
- The sound signal may be affected by propagation, resistance, shielding, and circuit complexity. To improve accuracy, check wiring step-by-step and complete signals to pinpoint the exact short.
- When the signal is not strong enough, the volume will be low in the receiver. Please find a strong signal and try to turn the signal up to the highest level; also check whether the battery power is sufficient, as it will affect the tool working properly. When the tool is not used, please leave it in the OFF position or remove the batteries directly to avoid draining the power.
- V210 is an entry-level tester and can only roughly determine the short circuit area through sound signals but not the exact short point in multiple and complex wires. Any issue before or after purchase, please check with us!

Product Components
- Battery Compartment – Houses power source for operation. (Battery not included)
- Test Lead – Connects to wires/circuits for diagnostics.
- Mode Switch – Toggles between TONE (wire tracing/open circuit) and CONT (continuity/short circuit) modes.
- Transmitter Switch – Activates signal transmission for circuit analysis.
- Test Button – Initiates diagnostic checks.
- Built-in Buzzer (Speaker) – Provides audible alerts for faults (e.g., beeps for shorts/breaks).

Packing List
- V210 Transmitter × 1
- V210 Receiver × 1
- User Manual × 1
- US$12.90
- US$69.00
- US$25.65
- US$15.19
- US$14.90
- US$28.90
- US$1,950.00
- US$1,699.00
- US$109.00
- US$8.99
- US$540.55
- US$719.00
- US$65.55
- US$19.90
- US$29.99
- US$39.00
- US$39.00
- US$28.90
- US$21.03
- US$49.58
- US$19.99
- US$48.00
- US$1,140.00
- US$19.99
















