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WINAMOO digital LED circuit tester with extended spring wire and probe

WINAMOO 5-90V Digital LED Circuit Tester with Extended Spring Wire

SKU CH-CJMM-FV5WK

Tests 5–90 V circuits with a digital LED readout and a 110-inch spring lead

  • FeaturesAs Shown, Corded Electric, false
  • Height14 L x 14 W x 14 H centimeters
  • Width14 L x 14 W x 14 H centimeters
  • Length14 L x 14 W x 14 H centimeters
  • Weight200 grams
  • Sports Team1 Piece
  • Clear voltage reading in any light with LED digital display
  • 110 inch spring wire reaches across the vehicle for flexible testing
  • Red and green LEDs show polarity instantly for faster fault finding
  • Built-in chip protects the circuit from overload for safer use
  • Insulated cover and probe guard against electric shock during handling

Digital LED Circuit Tester

The WINAMOO 5-90V digital LED circuit tester is an automotive electrical system tool designed for voltage measurement and polarity detection. It features a corded electric probe with an LED digital display that provides clear volt readouts in both bright daylight and dark conditions. A built-in circuit board chip adds line protection and improves durability over traditional test lights.

Suits DIY vehicle owners

This tester suits users who need a portable voltage probe with an extended spring wire for reach across engine bays or RV chassis. The bidirectional LED shows positive and negative polarity at a glance. It is not for technicians who require data logging, waveform capture or continuity beeps, nor for anyone testing circuits outside the stated voltage window.

5-90V measurement range with 110 inch spring wire

The single specification that decides fitment is the 5-90V operating range combined with a spring wire that extends to 110 inches. This voltage window covers common automotive low-voltage circuits while the long lead allows one-hand testing across wide work areas without repositioning the alligator clip.

Highlights

  • Clear voltage reading in any light with LED digital display
  • 110 inch spring wire reaches across the vehicle for flexible testing
  • Red and green LEDs show polarity instantly for faster fault finding
  • Built-in chip protects the circuit from overload for safer use
  • Insulated cover and probe guard against electric shock during handling

Specifications

BrandWINAMOO
FeaturesAs Shown, Corded Electric, false
Height14 L x 14 W x 14 H centimeters
Width14 L x 14 W x 14 H centimeters
Length14 L x 14 W x 14 H centimeters
Weight200 grams
Sports Team1 Piece
TypeVoltmeter

Questions about this item

What does the 5-90V range cover when I am testing a car circuit?

It lets you measure low-voltage automotive circuits from 5 volts up to 90 volts, so you can check battery, fuse and sensor lines on cars and RVs without needing a separate multimeter.

How does the bidirectional LED show polarity on this tester?

A red LED lights when the probe touches positive and a green LED lights for negative, so you can clamp the alligator clip to either ground and instantly see which side is which.

How far can the spring wire stretch for reaching across the engine bay?

The coiled lead extends to 110 inches, giving plenty of reach to connect the clip to the battery while you probe fuses or wiring at the far side of the vehicle.

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