







⚡ Diagnose like a pro, never miss a spark!
The ZKTOOL 3-36V Automotive Circuit Tester Pen is a compact, battery-powered electrical tester designed for professional-grade vehicle diagnostics. Featuring a wide 3-36V testing range, a high-precision LCD display with ±0.2V accuracy, and intuitive red/green LED polarity indicators, it ensures fast and reliable circuit checks. Its sharp pure copper probe and flexible TPU spring wire with secure alligator clips make it ideal for accessing tight spaces and maintaining stable connections. CE marked and RoHS compliant, this tool is a must-have for any automotive technician or enthusiast aiming for flawless electrical troubleshooting.








| Manufacturer | ZKTOOL |
| Part number | ZKEU006 |
| Item Weight | 70 g |
| Package Dimensions | 22.6 x 10.5 x 2.7 cm; 70 g |
| Item model number | 3-36V |
| Colour | Red |
| Style | Compact |
| Material | PVC, Pure copper probe, TPU spring wire |
| Power source type | Battery Powered |
| Measurement Accuracy | 0.1 |
| Display style | LCD |
| Specification met | CE marked, RoHS compliant |
| Batteries included? | No |
| Batteries Required? | No |
P**
Thanks
Work's as it should. thanks
G**L
Great tool
Simple & easy to use, a little worried about the longevity of the switch as it feels a little flimsy but working well so far.
L**
Good for this price
It could be better if it made it in a good solid plastic. Other wise it's works good
A**R
Perfect item
Amazing item and great value !
A**R
Clip too weak for spring, prong broke off-day 1
within an hour, had to superglue the copper prong into the recess- it broke off almost immediately. The coiled wire is too strong for the clip ( clip too weak). Poorly made
D**S
It works
For the price it works well
J**
Good value
Arrived and done the job nicely ideal for a cheap fuse tester
S**
Car tester
Good quality .work well.
Trustpilot
2 weeks ago
3 weeks ago