Car Trunk Voltage Circuit Tester Pen LED Digital Display Power Probe Voltage Detector Car Repair Maintenance Diagnostic Tool


( 11 reviews )

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*1. Check if the circuit is powered on! Check whether various lights fail, electrical circuits and safety components in the car are live, etc.

*2. Test line distinguishing positive and negative poles! If the line or positive and negative pins cannot be identified, the traffic lights inside the pen quickly distinguish between positive and negative poles.

*3. Check the pulse signals of each component! For example, detecting pulse signals such as ignition signals, fuel injection signals, and sensor signals.

*4. Check if the real virtual electric string of the line is damaged during the construction of the railway! If you observe the difference in brightness between the light and dark levels of the written test, bright indicates real voltage and dark indicates ghost voltage.

*5. Check the real-time voltage of various circuits and electrical appliances! Real time visualization of voltage changes in circuits.


Material: ABS+alloy

Positive and negative electrode detection lamp

Grinding head probe

Touch crocodile clip


1.Due to manual measurement, please allow an error of 1-3mm. Please ensure that you do not mind before bidding.

2. Due to the differences between different monitors, the images may not reflect the actual color of the project. Thank you.

Shipping Continents: Europe

Additional information


with LED display, No LED display



Material Type

TPU antifreeze material


5V ~ 30V

Software Version

Professional version / Professional LED digital display version

Item Type

Battery Testers



11 reviews for Car Trunk Voltage Circuit Tester Pen LED Digital Display Power Probe Voltage Detector Car Repair Maintenance Diagnostic Tool

5.0 Average Rating Rated ( 11 Reviews )

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  1. Clarita Pursell

  2. Fukumoto Shusake

    Great article for electronic installations. Product arrives in 8 days to Querétaro México. 100% recomendable seller.

  3. Derrick Sclafani

    The tester is good, the fume is 5 Ma, the show is accurate. Ale I don’t have a Duge cord. Having made me.

  4. Oscar Álvarez


  5. Mahi Reid

    It came all in time and not damaged! I take a second Tester as a gift.

  6. Émeric Figuier

    The device is as described, compact is easy to handle, time will tell how tenacious.

  7. Emma Carra


  8. Gayla Tincher

    Very beautiful

  9. Tandy Hoyte

    The seller is reliable, the product arrived quickly, the quality is satisfied

  10. Verline Cordon

  11. Debbie Tanner

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