

🔧 Diagnose like a pro, drive with confidence!
The Topdiag P100 is a professional-grade automotive power circuit probe tester designed for 12V and 24V vehicles. Featuring a built-in circuit breaker for safety, dual 20ft extension cables for flexible testing, and multi-function capabilities including AC/DC voltage, resistance, continuity, and polarity tests, it empowers vehicle owners and technicians to quickly and accurately diagnose electrical issues. Backed by a 1-year warranty and 24/7 tech support, it’s the ultimate tool for reliable, on-the-go automotive electrical troubleshooting.










| ASIN | B0BZD7PGZR |
| Best Sellers Rank | #46,621 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #84 in Circuit Testers |
| Brand | TopDiag |
| Color | Black |
| Date First Available | March 23, 2023 |
| Item Weight | 2.44 pounds |
| Item dimensions L x W x H | 9.84 x 3.35 x 7.48 inches |
| Item model number | Topdiag P100 |
| Manufacturer | Topdiag |
| Measurement Type | Multimeter |
| Min. Operating Voltage | 12 Volts |
| Power Source | Corded Electric |
| Product Dimensions | 9.84 x 3.35 x 7.48 inches |
| Style | P100 |
| UPC | 753955453710 |
| Upper Temperature Rating | 50 Degrees Celsius |
K**1
Helpful tool!
Helped diagnose starter issue old vs new starter, new starter found defective thanks to this tool. Very accurate! Pretty easy to use.
G**A
Way better than the first P200
Better than the first P200, more option and includes a circuit tracer that the previews model don't have
D**L
Great deal
Great customer service. I had one burn out, had a new one the next day. This machine has helped me save customers a lot of money. I can diagnose sensors and find shorts, test Fuses and wiring with precision. I was even able to simulate voltage for the temp sensor to verify cooling fans worked properly. Very nice setup. I also tried testing injectors. It does work but its a little more involved.
J**U
Great Tester
Nice storage case, easy plug attachments, worked Great
S**E
No frills.
It worked just fine. It is a decent product for the price. It helped me track down an issue so it did what I needed it to do.
M**N
Probe
Great tool with out spending a lot of money in the original brand highly recommended
J**T
Works as it should
Reasonably priced/ works well
A**A
Worked exactly as I hoped and then some. Fixed a Diagnosis I was chasing for days!
Absolutely cannot recommend this tool enough. It works exactly as I hoped and has loads of features. Wasn't too hard to figure out. Plenty of cable length so no fear of it being annoying to use. The ground cable is a little short so make sure you've got some testing probes and wires for adjustments. Was chasing a No fuel pump No start condition that was hiding for days. Eventually found the culprit hidden in the Fuel pump assembly that holds the fuel pump together and allows the chassis harness to plug into it. Had a hidden arc damage in the connector on the assembly. This tool ruled it out by simulating power to the pumps making sure they were good but also fully testing the assembly to see if it worked. Solved the mystery and saved me a major headache. Would highly recommend this as it made my life so much easier. Yes it did come with a case too! The P150 model Fuel Pump testing worked flawless and was able to monitor Voltage as well.
P**B
Good kit, with many features
I**.
muy buena opción y alternativa a power probe aprovechen el precio! saludos desde guanajuato México
D**S
Muy bueno y rápido llego antes de la fecha pero el cable es muy corto no son 40ft y aparteel conector es fijo no se desconecta
Trustpilot
4 days ago
3 days ago