AWBLIN 18-Piece 3–72V LED Test Light Probe Kit — Automotive DC Circuit Tester with Interchangeable Plugs & Alligator Clip

AWBLIN Test Light Probe Kit is an 18-piece, portable 3–72V LED digital automotive circuit tester set designed to diagnose, trace and verify DC vehicle electrical circuits quickly and reliably.

This compact kit combines a bidirectional LED test light with a wide selection of interchangeable plugs, probes and an alligator clip so you can access fuses, connectors, bulbs and wiring harnesses without improvising adapters. The tester’s 3–72V range covers the vast majority of modern cars, trucks, motorcycles and small DC systems, while the organized carrying case keeps every piece secure and ready for roadside or shop use.

How will this kit help me find electrical faults in my vehicle?

The AWBLIN tester provides a visual LED readout that identifies voltage presence and polarity, speeding up troubleshooting compared with multimeters for simple checks. With multiple tip sizes included, you can probe tight terminals, back-probe connectors and test individual wires or bulbs without damaging insulation.

• LED shows presence of DC voltage and polarity (red positive, green negative)
• Interchangeable male and female flat/round plugs for varied terminal types
• Two probe tips for back-probing and tight access points
• Alligator clip for secure grounding or live-clamp testing

What vehicles and systems does the 3–72V range cover?

The 3–72V DC range is broad enough for nearly all passenger vehicles, light trucks, motorcycles, boats with 12V or 24V systems, and many accessory or auxiliary DC circuits. It’s not intended for high-voltage hybrid or mains systems, but it excels for batteries, lighting, horn circuits, fuses and control modules.

• 12V and 24V automotive electrical systems
• Motorcycle and marine 12V circuits
• Accessory and low-voltage DC installations up to 72V
• Fuse boxes, light sockets, wiring harnesses and switches

How easy is it to carry, organize and swap tips on the probe?

The set arrives in a fitted plastic case with foam cutouts for each component so parts remain protected and in place during transport. Tips and plugs screw or push into the test light handle quickly, letting you switch between terminal types without tools.

• Lightweight case with molded foam insert for secure storage
• All 18 parts — plugs, probes, clip and test light — stay neatly organized
• Quick-change probe and plug system for on-the-fly swaps
• Case dimensions and kit weight suitable for glovebox or toolbox storage

How does the bidirectional LED polarity indication work in practice?

The test light has an onboard LED that changes color to indicate polarity: red for positive, green for negative. You can clamp the alligator to either ground or power and probe the circuit tip; the LED tells you whether the probed point is above or below your clamp reference, simplifying wiring checks.

• Polarity shown by two distinct LED colors for quick interpretation
• Clamp the alligator to chassis or battery lead depending on test method
• Useful when tracing power loss, intermittent grounds, or reversed connections
• Visual feedback reduces guesswork compared with nonindicating probes

Who is this for: DIYers, mobile mechanics, electricians working on low-voltage DC systems, fleet technicians and hobbyists who need a portable, all-in-one probe kit for rapid troubleshooting. If you perform routine electrical diagnostics on cars, motorcycles, boats or accessories and want an organized, quick-response solution for voltage and polarity checks, this AWBLIN 18-piece kit covers the common test scenarios without requiring multiple separate adapters.