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🔧 Diagnose like a pro, fix like a boss — never miss a beat under the hood!
The Topdiag P200 Power Circuit Probe Kit is a versatile automotive diagnostic tool supporting 9-30V systems. It combines multimeter and oscilloscope functions to test voltage, continuity, fuel injectors, relays, and more. Featuring a 0-5V adjustable power supply and component activation up to 20A, it ensures fast, precise diagnostics with built-in circuit breaker protection. Compatible with cars, trucks, motorcycles, and boats, and supporting 18+ languages, it’s designed for professionals demanding speed, accuracy, and reliability.










| ASIN | B0BYNLQX5P |
| Best Sellers Rank | #48,775 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #91 in Circuit Testers |
| Brand Name | TopDiag |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (878) |
| Included Components | 1*P200/2*Battery Clamps/1*Manual |
| Item Dimensions | 12 x 4.33 x 9.25 inches |
| Manufacturer | Topdiag |
| Measurement Type | Multimeter |
| Minimum Operating Voltage | 9 Volts |
| Model | P200 |
| Power Source | Battery Powered |
| Specification Met | CE, ETL, NIST, UL |
| Style Name | P200 |
| UPC | 753955453673 |
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.
M**N
Probe
Great tool with out spending a lot of money in the original brand highly recommended
B**N
Great
Great for the price
E**.
Bought 2, one great! One so so
Works great, does exactly what it says it does. BUT I bought 2 one for home and one for work. They both came in different lengths and one came with a Velcro strap. About a year later one of the buttons is a little sticky but still works
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.
D**E
This Probe has a scope too!
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 ,
J**U
Great Tester
Nice storage case, easy plug attachments, worked Great
D**L
Muy buena calidad
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
C**S
El producto es bueno pero solo lean bien las especificaciones decía q venía el cable largo y el estuche pero no fue así por eso lo devolví
Trustpilot
5 days ago
1 month ago