VEHLIVE P100 Plus Automotive Circuit Probe Tester — 12V/24V Digital Voltmeter with 40ft Cable, Overload Protection

VEHLIVE P100 Plus is a multi-function automotive circuit probe that combines a test light, digital voltmeter, and active power supply to diagnose 12V and 24V vehicle electrical systems quickly and safely.

The P100 Plus was redesigned from user feedback to bring improved visibility, longer reach, and smarter protection into a compact handheld tester. It replaces several traditional tools by measuring voltage, polarity, continuity and voltage drop while also being able to actively apply 12V power or ground to components. Rugged construction, overload protection, and a 40‑foot total cable length make it suitable for professional shops and home mechanics tackling cars, trucks, motorcycles and other 12V/24V systems.

How does the P100 Plus make finding electrical faults faster?

The P100 Plus gives both passive measurements and an active power/ground output so you can energize parts without removing them from the vehicle. That difference lets you determine whether a lamp, motor, relay or connector is faulty under normal operating voltage.

• Active 12V power and ground outputs for component activation.
• Digital voltmeter with backlit, angled LCD for easy readings.
• Continuity and voltage drop checks to pinpoint wiring or connector issues.
• Audible and visual feedback to confirm test results quickly.

Is the P100 Plus safe to use on modern vehicle electrical systems?

Safety was a core focus: the P100 Plus includes overload and short‑circuit protection to help avoid damaging the tester or vehicle electronics during diagnosis. The metal probe is corrosion resistant and the handle is ergonomically designed for secure gripping during extended use.

• Built‑in overload and short circuit protection.
• Wear‑resistant metal probe for reliable contact.
• Non‑slip handle for steady control in confined spaces.
• Protective storage case to prevent damage during transport.

What makes the P100 Plus more convenient than basic test lights?

Beyond basic illumination, the P100 Plus integrates measurement, visual aids and long reach so you can diagnose without swapping tools or relocating the vehicle. The unit’s two LED lights, angled display, and generous cable length let you work in dark engine bays, under truck beds, or at distant chassis points without hassle.

• Two 20‑ft extension cables (40 ft total) for extended testing reach.
• 15° angled, backlit LCD plus dual LEDs for readable displays in low light.
• Plug‑and‑play power via battery clip or cigarette lighter socket.
• Compact, travel‑friendly case keeps accessories organized.

Will the P100 Plus work with my vehicle and what functions will I get?

The P100 Plus is compatible with standard 12V and 24V electrical systems found in cars, SUVs, trucks and motorcycles. Expect voltage and polarity readings, continuity checks, voltage‑drop testing, and the ability to apply power or ground to components for on‑vehicle testing.

• Designed for 12V and 24V automotive electrical systems.
• Voltage, polarity, continuity and voltage drop diagnostics.
• Component activation via powered output to confirm faults quickly.
• Useful for professional mechanics and DIY vehicle owners alike.

Who is this for: the VEHLIVE P100 Plus is aimed at auto repair professionals, fleet technicians, and hands‑on car owners who need a single, durable tool to diagnose wiring and component issues without repeatedly swapping testers. If you value long reach, clear visibility, and the ability to actively power components during troubleshooting, the P100 Plus brings shop‑grade diagnostic capabilities at a budget‑friendly price.