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🔧 Diagnose like a pro, drive with confidence!
The TopDiag P100 Automotive Circuit Tester is a professional-grade diagnostic tool designed for 12V and 24V vehicles, including cars, trucks, trailers, motorcycles, and boats. It offers precise AC/DC voltage, resistance, and continuity testing with a wide 9V-70V input range. Equipped with a 20ft extension cable and safety features like an auto circuit breaker and reverse polarity protection, it ensures safe, accurate, and versatile electrical troubleshooting. Its user-friendly interface and multi-language support make it ideal for both seasoned mechanics and DIY enthusiasts.

























| ASIN | B07YC621J9 |
| Best Sellers Rank | #31,480 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #42 in Circuit Testers |
| Brand | TopDiag |
| Brand Name | TopDiag |
| Color | Black |
| Colour | Black |
| Compatible Devices | Vehicles (12V cars, 24V trucks, trailers) and their electrical components |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 637 Reviews |
| Included Components | 1*P100 |
| Item Dimensions | 15.2 x 6.1 x 3 centimeters |
| Item Weight | 1.9 Pounds |
| Item dimensions L x W x H | 15.2 x 6.1 x 3 centimeters |
| Item weight | 1.9 Pounds |
| Manufacturer | TopDiag |
| Maximum Operating Voltage | 70 Volts |
| Measurement Type | Ammeter, Multimeter, Ohmmeter, Voltmeter |
| Minimum Operating Voltage | 9 Volts (DC) |
| Model | P100 |
| Number of Items | 1 |
| Part Number | TopDiag |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Specification Met | CE |
| Style | P100 |
| Style Name | P100 |
| UPC | 791276754598 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 110 Degrees Celsius |
G**E
12v tester
Works well and saved me a lot oftime
I**I
good product.
good for looking shorts or relays not working.
A**A
Recomienda ampliamente
Buena calidad de construcción, durable, fácil de manejar, preciso y con los accesorios incluidos la hacen una herramienta muy competitiva en el mercado
C**C
Amazing tool for the price
First let me be clear, if you make a living using this kind of tool, get a Snap-on or Matco or something that comes with the big huge warranty and is built beefy, but for me, I only use kind of tool every so often and for that it is perfect. First, it comes with a 40 foot cable. That is amazing! I love that part and is what initially sold me on it. When doing trailer and RV wiring I can power it by the batteries in front and I have 40 feet to mess around with. I could not find another tool with this length in this price range on Amazon. This was the best. As for functions, it has all the basic functions you need and a couple of advanced ones but it is not as advanced as some of the really good automotive ones or the Flukes but again, at this price, what do you expect. That vast majority of the work you'll be doing will be done just using the normal functions so this fits the bill perfectly. Overall this is a great buy and I have used it quite a bit across hundreds and hundreds of feet of wire and I have not had an issues with it. It is accurate, and always works so I can test the circuits.
J**E
Saves me time
this has saved me so much time during troubleshooting circuit. fast shipping and i would recommend this product.
Trustpilot
1 month ago
1 month ago