Autel PS100 Power Circuit Probe Kit - Fast Automotive Voltage

Our review of the Autel PS100 Power Circuit Probe Kit finds it is a practical, time-saving tool for mechanics and DIYers who troubleshoot 12V and 24V vehicle electrical systems. The single biggest reason to buy is its ability to follow and locate open or short circuits without removing panels or carpet, which significantly reduces diagnostic time. The review covers how the PS100 acts like more than a simple multimeter by offering selectable modes, an LCD readout for DC/AV voltage and resistance, and two power connection methods so tests can begin quickly from a cigarette lighter or direct battery connection.

Key Features

• Circuit tracing: Locates open and short circuits without disassembling interior panels, saving hours of tear-down work.
• Multi-mode testing: Switch between DC and AV voltage and resistance modes with a mode button for flexible diagnostics.
• On-board power options: Two power connection methods let technicians power the probe from a cigarette lighter or battery terminal for immediate use.
• Powered output in DC mode: The tester can supply battery power or ground using the rocker switch to activate components or backfeed circuits during testing.
• LCD readout: A clear display shows voltage and resistance readings so the user can make quick, confident decisions while tracing faults.

Who It's For

The Autel PS100 is best for automotive technicians, mobile mechanics and informed DIYers who frequently trace wiring faults in cars, trucks, and light commercial vehicles. Its ability to probe 12V and 24V systems and supply power for testing makes it useful for electrical troubleshooting, component activation and verifying circuit continuity without invasive access.

Those who only need occasional, basic voltage checks or who prefer a traditional multimeter for bench electronics work might look elsewhere; the PS100 is designed primarily for in-vehicle circuit tracing and fault finding rather than detailed laboratory measurements.

Pros & Cons

Pros

• Speeds up diagnostics by following wiring to locate opens and shorts without removing panels.
• Multiple test modes and an LCD make readings straightforward and reduce guesswork.
• Two power connection options add convenience when working on different vehicles or in the field.
• DC mode can supply power or ground to test component operation directly from the probe.

Cons

• Not a replacement for a full-featured lab multimeter when precise electronic measurements are required.
• Documentation in the product description is concise, so users may need to learn some functions by hands-on use.

Specifications

Product	Power Circuit Probe Kit
Brand	Autel
System compatibility	12V and 24V automotive electrical systems
Readouts	LCD for DC/AV voltage and resistance
Power connections	Cigarette lighter or battery electrode
Modes	DC mode with power/ground supply, voltage and resistance modes

Our Verdict

The Autel PS100 is a focused diagnostic tool that delivers clear value for automotive technicians and serious DIYers who need to trace opens and shorts quickly. Its dual power options, LCD feedback and ability to supply power in DC mode make it a pragmatic choice for in-vehicle troubleshooting and a good value compared with carrying multiple separate testers.

Frequently Asked Questions

Can the PS100 test both 12V and 24V systems?
Yes, the PS100 is designed to work on both 12V and 24V automotive electrical systems.

How does the probe get power?
The tester can be powered either by connecting to the cigarette lighter or by attaching to the battery electrode.

Can it supply power to components during testing?
In DC mode the PS100 can supply battery power or ground via the rocker switch to activate components during diagnostics.