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Handheld automotive circuit tester with digital LED display, stainless probe and long coiled cable

KEHIPI

KEHIPI Electrical System Tool 3-72V 142in

SKU CH-9HR6-CAX4K

A 3-72V digital LED circuit tester with polarity indication, auxiliary lighting and a 142in extended probe

  • Width6.9 in
  • Tests 3-72V DC circuits across cars, trucks and other systems
  • LED digital display reads voltage to .1V with ±0.2V accuracy
  • Bidirectional tester shows polarity via red/green LEDs and buzzer tones
  • Low-current design protects vehicle ECUs from damage during diagnostics
  • 142-inch cable and stainless probe reach tight engine-bay locations

Professional Automotive Tester

This KEHIPI electrical system tool measures DC voltage from 3 to 72 V with a resolution of .1 V and an accuracy of ±.2 V. A bidirectional design shows polarity through red and green LEDs plus an audible buzzer, so technicians can verify circuits without guessing. The low-current probe protects sensitive vehicle computers during routine diagnostics.

Voltage Range and Resolution

The 3-72 V span covers most automotive lighting, fuse and battery checks, yet it stops short of high-voltage hybrid or EV systems. Readings appear on an LED digital display that remains legible in daylight or darkness, while twin illumination LEDs light the test point for night work. No AC measurement or data logging capability is provided.

Build and Daily Use

A stainless-steel probe resists corrosion and a 142 in lead gives ample reach around engine bays and under dashboards. The clamp attaches to either ground or positive terminals for flexible hookup. Width measures 6.9 in, making the unit compact enough for a tool bag while the extended cable avoids the frustration of short leads on larger vehicles.

Highlights

  • Tests 3-72V DC circuits across cars, trucks and other systems
  • LED digital display reads voltage to .1V with ±0.2V accuracy
  • Bidirectional tester shows polarity via red/green LEDs and buzzer tones
  • Low-current design protects vehicle ECUs from damage during diagnostics
  • 142-inch cable and stainless probe reach tight engine-bay locations

Specifications

BrandJASTIND
Width6.9 in

Questions about this item

Which voltage range should I pick for general automotive work?

The tester covers 3-72V DC, so it handles car, truck and motorcycle circuits without needing a second tool.

What does the ±0.2V accuracy mean when I am checking a 12V battery?

Readings will show to one decimal place and stay within two-tenths of a volt of the true value, letting you spot a weak cell quickly.

How does the polarity indication work on the probe?

Red LED and one beep signal positive, green LED and two beeps signal negative, so you know the polarity instantly without looking at the display.

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