
About TopDiag
TopDiag is designed for both Mechanic and DIYers.

No complex setups. No steep learning curve. Just clip the clamps to the car battery terminal, probe, and get answers. Whether you’re a first-year apprentice, a weekend DIYer, or a seasoned tech looking for a rugged backup tool, the TOPDIAG P60 cuts diagnostic time and gets you to the fix faster.
Bottom line: It’s not a frills-packed $100 scope. It’s the reliable, no-nonsense tester that pays for itself on the first job. Keep one in your box, one in your truck, and one for the new guy—because every tech deserves a tool that works as hard as they do.
Entry-Level Power Circuit Probe Tester


No complex setups. No steep learning curve. Just clip the clamps to the car battery terminal, probe, and get answers. Whether you’re a first-year apprentice, a weekend DIYer, or a seasoned tech looking for a rugged backup tool, the TOPDIAG P60 cuts diagnostic time and gets you to the fix faster.
Ensuring electrical system safety
It can quickly locate short - circuits, check for open - circuits, and identify electrical leakage.
Minor changes are clear at a glance
Accurate insight into circuit structure, circuit continuity testing to safeguard you.
Ensures solid grounding
From chassis to engine, P60 ensures solid ground connections.
Bottom line: It’s not a frills-packed $100 scope. It’s the reliable, no-nonsense tester that pays for itself on the first job. Keep one in your box, one in your truck, and one for the new guy—because every tech deserves a tool that works as hard as they do.
Entry-Level Power Circuit Probe Tester
![]() TOPDIAG P60 | ![]() TOPDIAG P200 | ![]() TOPDIAG P150 | ![]() TOPDIAG P200 PRO |
|---|---|---|---|
| Customer Reviews | |||
| — | — | — | — |
| Operating Voltage | |||
| 6V-30V | 9V-30V | 6V-30V | 9V-48V |
| Voltage Range | |||
| 0-70V | 100mV-100V | 0.1-70V | 100mV-100V |
| Circuit Breaker Finder | |||
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| Oscilloscope Mode | |||
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| Multimeter | |||
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| Relay Test | |||
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| Fuel Injector Test | |||
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| Active Test | |||
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| Jump Lead Function | |||
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| Trailer Lights Test | |||
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| Continuity Test | |||
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| Car Fuse Test | |||
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About TopDiag
TopDiag is designed for both Mechanic and DIYers.




























































