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Red-handled circuit tester with stainless probe, LED display and coiled spring lead

aFe Power Heavy Duty Circuit Tester 3-72V LED Buzzer 142

SKU CH-ABBG-RFJRA

Tests 3-72V DC circuits with a digital LED display, buzzer, built-in light and a 142" spring lead

  • Team affiliation1 Piece
  • Key features3-72 V Heavy Duty Circuit Tester, Ul 61010-1, Iec 61010-2-03
  • Product typeClamp
  • Stainless steel probe resists rust and improves safety
  • LED display reads DC voltage from 3 to 72 V with ±0.1 V accuracy
  • Built-in handle light and buzzer confirm polarity in dim conditions
  • Over-voltage alarm alerts you to hazardous levels
  • 142-inch anti-freeze spring wire reaches tight spaces with loss-proof probe cover

Heavy-duty 3-72V circuit tester

This aFe Power tester checks DC circuits from 3 to 72 volts with a digital LED readout. A stainless-steel probe resists corrosion and an insulated body meets UL 61010-1 and IEC 61010-2-030 safety standards. The tool suits automotive technicians and DIY owners who need quick voltage verification on vehicles or equipment.

Corded design with 142-inch spring lead

The unit draws power directly from the circuit under test, so no batteries are required. A 142-inch anti-freeze spring wire reaches across engine bays or chassis rails without an extension cord. Built-in handle illumination lights the probe tip in dark compartments, and a loss-proof cover protects the probe during storage.

Sustained diagnostic use with audible alerts

A buzzer sounds instantly to confirm polarity, letting you keep eyes on the work instead of the display. An over-voltage warning activates when the measured level exceeds the 72-volt range, reducing the risk of component damage during prolonged testing. The ±0.1V accuracy holds steady across repeated measurements.

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Price $28.99
Typical for this category: the median of 971 items is $30.99.

Specifications

Product
Brand nameaFe Power
Product typeClamp
More details
Team affiliation1 Piece

Questions about this item

What voltage limit triggers the over-voltage warning on the 3-72V tester?

The over-voltage reminder activates when the measured DC voltage exceeds the 72V upper limit of the tester's range.

How does the handle-mounted illumination and buzzer affect battery drain during all-day use?

The tester draws power from the circuit under test, so the LED display, illumination lamp and buzzer operate without a separate battery to deplete.

What must the vehicle or circuit provide for the tester to power its LED display and buzzer?

The circuit under test must supply between 3 V and 72 V DC for the tester to operate its digital display, illumination and buzzer.

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