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Handheld automotive circuit tester with probe guard, coiled cord and alligator clamp

AWBLIN Upgraded Buzzer Test Light 4-72V DC Circuit Tester

SKU CH-KDSZ-7Y3Z1

A 4-72 V DC circuit tester with buzzer warning, bidirectional LED polarity indication, anti-lost needle guard and 141-inch spring lead

  • FeaturesAutomotive Circuit Tester, DC Voltage Testing Safety Standar
  • Weight0.17 kilograms
  • Sports Team1 Piece
  • TypeVoltmeter
  • Safe testing with anti-lost needle guard preventing stab wounds
  • Bidirectional voltage detection shows polarity via red and green LEDs
  • Audible buzzer plus over-voltage alert at 72 V protects circuits
  • Computer-safe chip design avoids ECU damage during diagnostics
  • Spring cable stretches to 141 inches for wide reach

Automotive Buzzer Test Light 4-72V DC

The AWBLIN buzzer test light checks DC circuits from 4 to 72 volts. It suits automotive technicians and DIY owners who need a portable probe for wiring faults, fuse checks and battery tests. The integrated needle guard prevents stab wounds and cannot be lost. A coiled spring lead stretches to 141 inches for a wide reach around the vehicle.

Installation and Common Issues

Clip the alligator clamp to either positive or negative ground; the tool works bidirectionally. A red LED shows positive polarity and a green LED shows negative polarity. The built-in buzzer sounds while voltage is present. If the reading exceeds 72 volts the display shows "ol" and both LEDs flash together — stop testing immediately. The corded electric design needs no batteries.

Pre-Purchase Checks

Confirm the system you will test stays within the 4-72V DC range. Verify that the spring lead length of 141 inches is sufficient for your typical workspace. The unit weighs 0.17 kilograms and is rated for automotive electrical systems only. It is not suited for mains-voltage or high-voltage EV battery diagnostics.

Highlights

  • Safe testing with anti-lost needle guard preventing stab wounds
  • Bidirectional voltage detection shows polarity via red and green LEDs
  • Audible buzzer plus over-voltage alert at 72 V protects circuits
  • Computer-safe chip design avoids ECU damage during diagnostics
  • Spring cable stretches to 141 inches for wide reach

Specifications

BrandAWBLIN
FeaturesAutomotive Circuit Tester, DC Voltage Testing Safety Standards, Corded Electric, false
Weight0.17 kilograms
Sports Team1 Piece
TypeVoltmeter

Questions about this item

How can I confirm the tester is working correctly after connecting it?

The LED lights and buzzer activate during a live test; red LED shows positive polarity, green shows negative, and both flash together with an "ol" display if voltage exceeds 72 V.

What comes in the package and what must I supply?

The box contains the circuit tester with integrated needle guard, alligator clamp and a spring cable that stretches to 141 inches; no battery or external power source is required.

Which capacity should I select for a 4-72 V DC system?

This single model covers the full 4-72 V DC range, so no separate version or capacity choice is needed.

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