







⚡ Diagnose like a pro, save time, and never get stranded again!
The Topdiag P100 Power Probe is a professional-grade automotive circuit tester designed for 6-30V systems. It offers multifunctional testing capabilities including AC/DC voltage, resistance, continuity, and polarity checks. Featuring a built-in circuit breaker for overload protection and a 20ft extension cable, it ensures safe, accurate, and flexible diagnostics across cars, trucks, boats, and motorcycles. Backed by a 1-year warranty and trusted by thousands, it’s the essential tool for any vehicle owner or technician aiming to reduce diagnostic time and increase reliability.










| ASIN | B0BZD7PGZR |
| ASIN | B0BZD7PGZR |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #144,695 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #199 in Circuit Testers |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (414) |
| Customer reviews | 4.6 4.6 out of 5 stars (414) |
| Date First Available | 7 September 2023 |
| Date First Available | 7 September 2023 |
| Included components | 1 * P100/1 * Probe / 2 * Battery Clip |
| Item Weight | 1.11 Kilograms |
| Item model number | Topdiag P100 |
| Item model number | Topdiag P100 |
| Manufacturer | Topdiag |
| Manufacturer | Topdiag |
| Part number | Topdiag P100 |
| Power source type | AC/DC |
| Product Dimensions | 24.99 x 8.51 x 19 cm; 1.11 kg |
| Product Dimensions | 24.99 x 8.51 x 19 cm; 1.11 kg |
| Style | professional |
| Voltage | 12 Volts |
K**1
Helped diagnose starter issue old vs new starter, new starter found defective thanks to this tool. Very accurate! Pretty easy to use.
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
J**U
Nice storage case, easy plug attachments, worked Great
D**E
I was totally shocked and surprised that this Probe had a little "Lab Scope". Using A/C Voltage screen, I got the 'Scope' and Frequency and Duty cycle. It was able to 'see' my ignition coil primary firing! I would not be making a lab scope diagnosis from here, but, this is great for that first 15 minute view into 'What is going on here'? I am looking forward to proving it can 'See' things like Purge valve duty cycle, along with blower motors, fans etc! The other Probe features appear to be very good and normal. Positive and negative tip, circuit breaker, logic probe indicator, continuity, tone, Ohms, etc. Remember,TRIGGER CONTROL! Don't put power or ground to any computer circuit. Those are the really small wires. If you do, you will surely burn up the computer,.... you know....'Let the smoke out'! It is safest to disconnect the particular load from the circuit before trying to power it up and see if it runs, ie: UNPLUG IT! Happy Trails ,
Trustpilot
3 days ago
3 weeks ago