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WINAMOO digital LED electrical tester pen with 140 inch spring wire and alligator clip

WINAMOO Heavy Duty 5-90V Digital LED Electrical Tester 140 Inch Spring Wire

SKU CH-49H9-FB2R0

Digital LED circuit tester reads 5-90 V DC on cars, trucks, motorcycles and boats with a 140-inch spring wire and alligator clip for one-handed reach

  • Team affiliation1 Piece
  • Key features1, Corded Electric, false
  • Product typeVoltmeter
  • Accurate DC voltage readings from 5-90V with clear digital LED display
  • Red and green visual indicators show polarity instantly for faster fault finding
  • 140-inch heat and oil resistant PU spring wire reaches around the whole vehicle
  • Sharp insulated stainless steel probe pierces wires safely in tight spaces
  • Shatter-proof ABS body withstands workshop knocks for long service life

Versatile Automotive Circuit Tester

The WINAMOO electrical tester is a digital LED voltmeter designed for 5-90V DC vehicle systems. Its illuminated display provides clear readings in daylight or low light, making it suitable for professional technicians and DIY owners working on cars, trucks, motorcycles or boats.

Users needing basic polarity checks

The tool suits anyone confirming circuit integrity, identifying positive or negative ground and tracing faults with a single hand. It is not for buyers who require AC measurements, resistance or continuity functions, or technicians diagnosing high-voltage hybrid and EV architectures beyond the stated range.

140-inch heat and oil resistant spring wire

The extended PU coil lets the operator reach any point around the vehicle while the alligator clip secures the ground connection. This length and durability decide whether the tester fits the workspace and daily workshop demands.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $25.99
Cheaper than about 60% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameWINAMOO
Product typeVoltmeter
More details
Team affiliation1 Piece

Questions about this item

What does the 5-90V DC range mean when I am testing a vehicle circuit?

The digital LED display shows the exact DC voltage present at the probe, so you can confirm whether a circuit is live, measure voltage drop or verify sensor signals across the full 5-90V range.

How does the alligator-clip connection limit the way I use the tester?

The clip attaches to either positive or negative ground and the probe touches the opposite side; a red LED lights for positive voltage and a green LED for negative, giving instant polarity indication.

Will the 140-inch spring wire reach from the battery to the rear lights on a large truck?

The heat- and oil-resistant PU spring wire extends to 140 inches, letting you move around the vehicle without disconnecting the ground clip.

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