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🔧 Diagnose smarter, not harder — the ultimate power probe for pros and DIYers alike!
The KZYEE KM10 Power Circuit Probe Tester is a professional-grade automotive electrical diagnostic tool designed for 12V–30V systems. Featuring a vibrant color TFT live waveform display, it enables real-time visualization of voltage, frequency, PWM signals, and sensor pulses. With a 40-foot cable reach and built-in LED light, it offers unparalleled access to hard-to-reach vehicle areas. Its 10A auto-reset circuit breaker ensures safe testing by protecting against overloads and shorts. Combining circuit testing, wire tracing, short finding, and component activation, the KM10 empowers professionals and enthusiasts to diagnose 99% of automotive electrical issues faster and with zero guesswork.

















| ASIN | B071LHLSBB |
| Best Sellers Rank | #43,074 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Current Probes |
| Brand | KZYEE |
| Brand Name | KZYEE |
| Color | Red-Orange |
| Compatible Devices | Cars, Trucks, Motorcycles, Trailers, Boats, Vehicle Battery, Cigarette Lighter Power Supply |
| Customer Reviews | 4.6 out of 5 stars 3,861 Reviews |
| Included Components | Carry case, cigarette lighter adapter, battery clip, 20ft extension lead, manual |
| Item Dimensions | 11 x 8.8 x 2.9 inches |
| Item Highlight | 12V–24V automotive electrical tester with component activation, short finding, wire tracing and 40FT cable reach |
| Item Weight | 3.5 ounces |
| Item dimensions L x W x H | 11 x 8.8 x 2.9 inches |
| Manufacturer | KZYEE |
| Measurement Type | Multimeter |
| Minimum Operating Voltage | 12 |
| Model | KM10 |
| Number of Items | 1 |
| Part Number | KZYEE |
| Power Source | Vehicle 12v Battery Power Supply Or Ci-garette Lighter Power Supply; 24/7 Assistance Via Support@kzyeetech. Com Power Source Vehicle 12v Battery Power Supply Or Ci-garette Lighter Power Supply; 24/7 Assistance Via Support@kzyeetech. Com See more |
| Specification Met | CE, ETL |
| Style | The Ultimate 4-in-1 Power Circuit Probe Diagnose 99% of car electrical issues—faster, smarter, and with zero guesswork. This compact, all-in-one tester combines 4 powerful modes—DC/AC voltage, resistance, and diode checks—giving you instant, accurate answers. A game-changer for pros, DIYers, and car lovers alike. Style The Ultimate 4-in-1 Power Circuit Probe Diagnose 99% of car electrical issues—faster, smarter, and with zero guesswork. This compact, all-in-one tester combines 4 powerful modes—DC/AC voltage, resistance, and diode checks—giving you instant, accurate answers. A game-changer for pros, DIYers, and car lovers alike. See more |
| Style Name | The Ultimate 4-in-1 Power Circuit Probe Diagnose 99% of car electrical issues—faster, smarter, and with zero guesswork. This compact, all-in-one tester combines 4 powerful modes—DC/AC voltage, resistance, and diode checks—giving you instant, accurate answers. A game-changer for pros, DIYers, and car lovers alike. |
| UPC | 670534606919 |
| Upper Temperature Rating | 70 °C |
| Warranty Description | 60 DAYS MONEY BACK & 1 YEAR WARRANTY |
P**N
Good product
This is a good product.Has a nice long cord.The screen is easy to read.It's a good price, it's functionality works really easy.I like the carrying case that's a good value for the money and the connectivity is really easy
M**L
Great product
For the price this probe is pretty damn good, I’ve used to test radiator fans, retract electronic parking brake motors, and a bunch of other stuff. If you aren’t trying to spend a thousand dollars on a Snap On or Matco power probe this is the probe to get.
D**R
Killer price for a great back-up diagnostic tool
I'm writing this with only one week of use-so take that with a grain of salt. This unit, while not being what one would consider commercial grade is an amazing little probe. The power leads, without which the unit doesn't work, is super long and had both cigarette lighter and big (light weight) alligator clips attachments. It is fairly accurate in testing component resistance and detects fair value and polarity of diode (and can be used to check capacitors health in resistance mode, if you know how). It feels good in the hand, has a nice sharp pointed removable probe (that fits snugly into the housing when not in use) for testing small surfaces like fuse test points etc. It comes in a case with molded hinges and lock tabs on molded hinge points. Excellent to have as a back-up secondary quick check instrument for emergency diagnosis, on even as a flashlight, since it has 20' leads and medium bright lights that are always on while the unit is plugged in.
W**E
Very satisfied
More functionality than other brands. Traction of the price
J**S
Great tool!
I use this thing ALL the time and it’s priced so well. Understand basic automotive electronics and you’re good.
O**N
Every man should have one
The tool is awesome.
M**R
It works if you're careful
I had used it for about a year, no major issues. My only issue with the design is the length of the grounding cable, just a bit short for what I usually need it for, but I've been able to make it work with an extra wire. The only real problem I came across was when I had made the mistake of trying to apply power or ground to a wire when it had the other already active. User error, really. But it was when I kept doing it when I had to apply one of the two before making contact, like in a tight space. It would normally shut down and restart if you made a mistake, like normal. But I had done it quite a few times in a row and it had shut down completely. Few days later, it starting working again, but sometimes when you power it, it doesn't show or do anything on the screen but a blank background. Again, user error caused it. But other than that, having it as a mobile mechanic has saved me so much time, being able to see what is actually happening. I only have the KM10, but I honestly might upgrade to see what I can use the nicer model for. It was well worth the price.
E**N
Broken right out of box, then started working next time
Screen lights up but is always blank, either circuits bad or screen it, but it's doa right out of the box, literally the first time I used it, the same day it arrived. Should not have bought a cheap clone. Next day, I was going to use the non digital parts to chase down my issue, and it started working and I liked it. Since that one was flaky, I got another to try, seems to work, bumping 3 to 3 stars, will update next time I use it, but it's pretty infrequent, that I chase the kind of electrical issue that needs more than just a test light so it might be a while. They did refund the price with no complaints, so that's good. Liked customer service If it seems reliable I'll update the review later.
J**E
Buen producto para el precio
Funciona todo bien menos que no mide resistencias solo sirve para comprobar continuidad
R**H
Unentbehrlich bei der Fehlersuche
Sensationell gutes Gerät für die Fehlersuche bei der Kfz Elektrik. Strom durch die Leitung schicken, Durchgabgsprüfung und Spannung auf + / - kann gemessen werden.
P**A
Keine Herstellerunterstützung – ein sehr schlechtes Zeichen
Das Produkt als solches vermittelt auf den ersten Blick in jeder Hinsicht ein gutes Gefühl. Die Sonden passen genau in die Löcher der Verlängerungskabel. Gehäuse des Gerätes ohne Grate...WWW-Seiten des Herstellers sind nicht sicher. Kein Link in der Spalte für Downloadoptionen für technische Informationen. Der Kontaktversuch, der im beigefügten Handbuch / der Support-E-Mail-Adresse aufgeführt ist, war nutzlos. Der Support ist wahrscheinlich im Urlaub... Sehr, sehr gemischte Gefühle…
M**N
Very Nice Bit of Kit well worth the price
Packaging The tester came in a cardboard outer sleeve. Once removed you will find a hard-plastic case that holds the tester unit and the accessories. Upon opening the box you notice how well the unit is fitted in there with a nice thick foam insert in the lid. First Look Looking at the unit you see how well it looks and some of the nice design features it has with the colour screen and the removable probe along with a massive 20ft extension cable. It has all the connections you need, Direct from the battery or from the included lighter socket adapter. First use The unit was powered by the lighter socket and booted up into the menu in a second. You are presented with a nice clear colour display and 4 menu options at the top of the screen. The unit has 2 led's on the top of it giving you some light to work with. You select the menu option with the round menu button on the device. The menu runs through the following settings DC Voltage, AC Voltage, Resistance and Diode Just press the menu button until you see the correct screen. With the probe in DC Voltage it allows you to read the DC Voltage of a circuit The AC Voltage does the same but for AC Voltage The Resistance mode enables you to check the resistance between the tip and the Aux ground Lead. In this mode you can check the voltage drop from positive to negative on a diode I used the probe to check a few headlight bulbs I had lying around not knowing if they were out or not. I connected the Aux cable from the probe to the negative on the bulb and touched the tip to the positive, this allowed me to check the circuit. The screen went green confirming no issues with the continuity of the bulb I then pushed forward on the toggle switch and applied voltage to the bulb lighting it up. A quick two-minute task is completed with the tester saving a lot of time and effort. My Thoughts, All in all a solid bit of kit with easy to use features and a easy to use menu. A Good design aesthetic and all stored in hard plastic case. a must for anyone who works on electrical systems.
9**C
Testeur
Très bon
Trustpilot
2 months ago
5 days ago