KM10 Power Circuit Probe Kit, 12V 24V Automotive Circuit Tester, Digital Multimeter, Short Finder, AC/DC Voltage Tester,
£126.24 inc. VAT (£105.20 ex. VAT)
- Premium quality at just £126.24 inc. VAT
- Free UK delivery on every order
- 30-day no-quibble returns under Consumer Rights Act 2015
- Secure checkout with buyer protection on every purchase
Why Choose ProbePower
One tool for faster electrical diagnosis
The KM10 Automotive Power Circuit Probe Kit is designed for technicians who want more than a simple test light. It combines the everyday functions of an automotive power probe, car electrical tester, automotive short finder and vehicle voltage tester into one practical kit, helping you move from first check to confirmed fault without changing tools. That means quicker diagnosis on power feeds, earth faults, blown circuits, damaged wiring and intermittent shorts.
Built for 12V and 24V vehicle systems
Whether you work on passenger cars, vans or light commercial vehicles, the KM10 gives you the flexibility to test both 12V and 24V systems confidently. Use it to verify voltage and polarity, check continuity, measure resistance, perform diode checks and energise components such as relays, fans, motors and solenoids. It is an ideal fit for mixed-fleet workshops and mobile technicians who need one dependable circuit probe kit across multiple vehicle types.
Practical workshop reach and usability
The included extended 20FT + 20FT cable setup makes a real difference in daily use. You can clip to the battery and work around the engine bay, cabin or rear of the vehicle without constantly repositioning. A clear digital display improves readability, while the ergonomic probe format supports precise testing on connectors, fuse boxes, harnesses and switch circuits.
A stronger alternative to fragmented testing tools
Compared with carrying separate tools or relying on brand-led shorthand from Power Probe or TOPDON-style testers, the KM10 is positioned as a complete fault-finding solution. For UK users searching for a professional automotive power circuit probe tester, automotive circuit tester UK solution or portable automotive power circuit probe tester, this kit delivers workshop-grade performance, broad vehicle compatibility and time-saving functionality in one robust package.
Technical Specifications
- 6-30V DC
- 12V and 24V systems
- 20FT main lead + 20FT extension
- 0-200 kΩ
- Backlit digital LCD
- -10°C to 50°C
- UKCA, CE, RoHS, EMC tested
- 2 Years UK
Price Comparison
See how our price compares across UK retailers
| Retailer | Price | Delivery | Warranty |
|---|---|---|---|
| ProbePower UK (Specialist)BEST | £126.24 | FREE | 12 months + UK Support |
| eBay (est.) | £157.80 | Varies | Seller dependent |
| High Street RRP | £201.98 | N/A | Varies |
Prices checked 9 July 2026. Prices may vary.
Customer Reviews
Used the KM10 on a Transit with an intermittent rear light fault and the short-tracing function saved a lot of time. The 20FT plus 20FT lead reach meant I could work from the battery right to the back of the van without dragging everything around.
I run a mobile auto electrical service and this has replaced a basic test light and one of my older meters for many jobs. Being able to check polarity, voltage and then activate a relay from the same tool is a real time-saver.
The digital display is clear and the 12V and 24V compatibility is exactly why I bought it. I work on cars and light commercials, so having one car diagnostic circuit tester that covers both is genuinely useful.
Very capable bit of kit and much more useful than a simple circuit tester. The only reason it is not a full five from me is that new users should spend ten minutes learning the functions properly before using the power activation side.
I was looking at Power Probe alternatives and this KM10 kit offered the all-in-one setup I wanted at a strong overall value. Used it already for fan motor checks, continuity testing and chasing a fuse-blowing short on a Fiesta.
Solid workshop tool with good cable length and a tidy case. My only minor gripe is that I would have liked a slightly longer printed quick-start guide, but once in use it is very straightforward.
This is the first vehicle voltage tester I have owned that genuinely speeds up fault-finding rather than adding another gadget to the drawer. Used it to confirm power and ground at a faulty fuel pump circuit and then test the relay directly.