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WINAMOO 6-24V circuit tester pen with large alligator clip and 135in PU coiled wire

WINAMOO 6-24V Automotive Circuit Tester 135IN PU Wire

SKU CH-4Q0J-V371W

A 6-24V automotive circuit tester with a 135-inch PU spring wire and large alligator clip for convenient vehicle electrical diagnostics

  • Team affiliation1 Piece
  • Key features6 V-24 V automotive test light, A replacement LED bulb., Bat
  • Product typeVolts
  • Brightness scales with voltage for clear circuit indication
  • 135-inch PU spring wire extends reach and resists wear
  • Large alligator clip grips firmly for one-handed operation
  • Stainless-steel probe pierces insulation to access tight spots
  • Bidirectional testing works on positive or negative ground

6-24V Circuit Tester with Extended Reach

This WINAMOO automotive circuit tester operates across a 6-24V range for diagnosing low-voltage vehicle circuits. It uses a professional LED bulb whose brightness varies with measured voltage to provide a clear visual signal. The package includes one replacement LED bulb for long-term service. It is designed for technicians and DIY owners who need a handheld probe for electrical fault finding.

Verify Vehicle Voltage and Access Points

Confirm the vehicle electrical system falls within the 6-24V operating window before use. Ensure you have a suitable grounding point for the large alligator clip to attach securely. Check that the sharp stainless-steel probe can physically reach the test points, including any tight areas where wire piercing may be required. The tool is battery powered so no external supply is needed.

Integrates into Diagnostic Routines

The 135-inch PU spring wire extends the working radius around the vehicle, letting the clip stay clamped while the probe moves between fuse boxes, relays and components. The bidirectional design allows the clip to connect to either positive or negative ground while the probe tests the opposite side. The insulated rubber tip and shatter-proof acetate body protect the user during live-circuit probing. It frees up both hands for component manipulation while the clip remains fixed.

How it compares

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

Price $20.99
Cheaper than about 77% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameWINAMOO
Product typeVolts
More details
Team affiliation1 Piece

Questions about this item

What comes in the box and what do I need to buy separately?

The package includes the circuit tester pen with a 135 inch PU spring wire, a large alligator clip, and one replacement LED bulb. No separate purchases are required for basic operation.

Which voltage range should I choose for my vehicle?

This single model covers 6V to 24V systems, so it works on motorcycles, cars, and light trucks without selecting a different version.

How does the brightness change when I test a 24V circuit versus a lower voltage?

The LED brightness varies with the measured voltage, giving a stronger glow at 24V and a dimmer indication at lower voltages to signal circuit strength.

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