









🔧 Diagnose like a pro, fix like a boss!
The CMTOOL Power Circuit Probe Tester is a durable, ABS-built automotive diagnostic tool designed for 6V-24V DC systems. Featuring overload protection with automatic circuit breaker and buzzer alerts, it offers precise polarity identification via dual-color LEDs, continuity testing, and component activation. Its 4-meter extended lead and high-sensitivity probes enable quick, accurate fault location across cars, trucks, boats, and motorcycles, making it an essential tool for professionals and enthusiasts aiming to streamline vehicle electrical troubleshooting.














| Brand | CMTOOL |
| Power Source | Battery Powered |
| Style | Circuit Testers |
| Color | Red |
| Item Weight | 0.33 Kilograms |
| Min. Operating Voltage | 6 Volts (DC) |
| UPC | 758358922504 |
| Manufacturer | CMTOOL |
| Item Weight | 11.7 ounces |
| Package Dimensions | 10.71 x 3.86 x 1.65 inches |
| Item model number | AY-29 |
| Manufacturer Part Number | AY-29 |
K**R
Easy to use
Why did you pick this product vs others?:Easy to use
J**S
Great Tool to have!!
Built well, saves a ton of time looking for a bad cable/ground. Lights are bright and I am still figuring out how to work all the features so...if I am a beginner and it works great for me....I know it will work great for anyone.
C**A
Good
Why did you pick this product vs others?:A must have for equipment mechanic or field technician workers wonders really great and the price is perfect
G**Y
great tester
Works good with a battery on the bench or test on the car. Does what it said it would do. Handy test tool. No problem with shipping , came on time. Not a snap on tool but good for the money
E**R
Thanks
Need this for my car battery.
J**N
Works
This works as it should. dint love that the wires are stiff. It would be much better with softer jacketing on the wire leads. Pretty good for the price point.
A**R
As advertised
As advertised
O**T
Great tool for the price
Works great
Trustpilot
3 weeks ago
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