VEHLIVE P100 Plus Automotive Circuit Probe Tester — 12V/24V Digital Volt Meter, 40ft Cable, Angled Backlit Display

The VEHLIVE P100 Plus is a compact automotive power circuit probe that combines active 12V/24V power supply, digital voltage measurement, and continuity testing with a built-in angled backlit display and 40 ft total cable reach.

Designed for mechanics and car owners who need a single, dependable tool for electrical troubleshooting, the P100 Plus replaces multiple testers by offering active power/ground activation, voltage and polarity readings, and voltage-drop checks in one handheld device. Upgrades inspired by customer feedback — such as a larger carrying case, brighter LEDs, and improved ergonomics — make it easier to work in tight engine bays, under trucks, or on roadside repairs.

How does the P100 Plus help pinpoint electrical faults quickly?

The unit actively supplies 12V power or ground to components, allowing you to energize lights, motors, or relays without rewiring the entire circuit. With that capability plus real-time voltage and polarity readouts, you can determine if a component or wiring is at fault.

• Active power/ground output to test components in place
• Digital voltmeter for instant voltage and polarity readings
• Continuity and voltage-drop checks to locate resistance or breaks
• Audible and visual feedback to confirm results quickly

What features make it practical for garage and roadside use?

Several design choices focus on usability and durability: a 15° angled backlit LCD for readability, two bright LEDs for working in dark spaces, and a rugged metal probe with a non-slip handle. The tool includes overload and short-circuit protection so it can be used repeatedly without risking damage to the tester or the vehicle.

• Backlit, angled screen for easy viewing in bright or low light
• Two top-mounted LEDs to illuminate test points
• Durable corrosion-resistant metal probe and ergonomic grip
• Built-in overload/short-circuit protection for safe testing

Can I reach distant components without moving the vehicle?

Yes — the P100 Plus ships with two 20 ft extension leads that combine for a 40 ft reach, letting you test trailer connectors, lamps, or sensors without repositioning the car. Dual power input options add flexibility when a battery connection is inconvenient.

• Two 20‑ft cables included for a total 40 ft reach
• Clip-on battery connection or cigarette-lighter power option
• Portable storage case keeps cables and probe organized
• Long cable length reduces the need to move vehicles during diagnostics

How compatible and easy to use is this tester with different vehicles?

The P100 Plus supports both 12V and 24V systems, covering cars, trucks, SUVs, motorcycles, and many commercial vehicles. Setup is straightforward: attach the clip to the battery or use the cigarette lighter plug, touch the probe to the test point, and read the digital display.

• Works with 12V and 24V electrical systems
• Simple probe-to-point testing — no complex configuration required
• Clear voltage and polarity display for fast interpretation
• Compact, single-handed operation for faster diagnostics

Who is this for: The VEHLIVE P100 Plus is built for professional technicians, mobile mechanics, and DIY vehicle owners who want a single robust tool to diagnose wiring, activate components, and measure voltage without swapping gear. Its protective case, extended cable reach, and readable angled display also make it a sensible pick for roadside repair kits and shop benches where durability and clarity matter.