Power Circuit Probe Tester – 3.5V-36V DC Multifunctional Automotive Circuit Tester

Professional-Tool for Electricians, DIYers & Auto Enthusiasts

✔ Wide Voltage Range: Accurately test 3.5V to 36V DC systems (cars, motorcycles) – perfect for 12V/24V vehicles.

✔ 6-in-1 Multifunction: Diagnose voltage, continuity, fuse integrity, short circuits, open circuits, and component activation with tool.

✔ Bright Test Light: Built-in LED with 360° visibility for dark engine bays or tight spaces.

✔ Heavy-Duty Design: Shockproof ABS body + 18/8 stainless steel probe withstands drops, grease, and extreme temps (-10°C to 60°C).

✔ Safety First: Reverse polarity protection + overload alert (buzzer + LED flash) prevents damage to you or your vehicle.

Note:

Aocuracy:  ± 2%

External power supply: 12V or 24V DC power supply via vehicle battery

Working temperature:  -10°C - 60°C

Overload protection current: 8A

current: 1-8Amp

Relative humidity: ≤ 80%

Short Circuit Finder for Continuity Testing - Have you ever faced issues like headlights not turning on, power windows malfunctioning, or the cigarette lighter not working—with no idea what's causing it? This multifunctional automotive circuit tester helps you accurately diagnose common electrical faults such as short circuits, open circuits, bad grounding, and abnormal voltage. It quickly pinpoints the problem area without the need for repeated disassembly. You can also test whether parts are properly powered, saving time and effort during repairs.
Test Light- Equipped with a backlit high-definition LCD screen, it provides real-time and accurate voltage readings with a margin of error as low as ±0.2V—making even small voltage fluctuations easy to detect. The built-in LED light allows for hassle-free testing in dark environments or tight spaces, so you're never limited by poor lighting.
Fuse & Voltage Tester - Even if you have zero experience with car repairs, you can get started quickly: Connect the red clip to the battery’s positive terminal and the black clip to the negative. Once powered on, the voltage value will instantly appear. Simply touch the probe to a circuit point to check continuity, voltage status, and polarity. If an overload is detected, the buzzer will sound immediately to alert you—helping protect both your battery and the tester.
Multifunctional Car Circuit Tester Reach Anywhere in Your Vehicle - With a 14.7ft flexible extension cord, you can reach the front engine bay or rear trunk with ease—test multiple areas without repositioning your battery connections.
From DIY to Mechanics - Wide with 6V–36V DC systems, it’s ideal for cars, pickups, motorcycles, trucks, boats, and more. Whether you’re a hands-on DIY car owner or a professional mechanic, this tool will upgrade your workflow.