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Handheld circuit tester with stainless steel probe, insulated ground clip and five-foot cord

OEMTOOLS 25019 Heavy Duty Circuit Tester 6 12 24 V

SKU CH-CGHQ-84ARP

Tests 6, 12 and 24 V circuits with a stainless steel probe, insulated ground clip and five-foot cord

  • Team affiliation1 Piece
  • Key featuresHeavy Duty Circuit Tester, Battery Powered, false
  • Overall height12.1 L x 4.2 W x 1 H inches
  • Overall width12.1 L x 4.2 W x 1 H inches
  • Overall length12.1 L x 4.2 W x 1 H inches
  • Product typeVoltmeter
  • Tests 6, 12 and 24 V systems for universal vehicle compatibility
  • No fuse removal needed to check circuit current quickly
  • Stainless steel probe fits 2 mm fuse openings precisely
  • Five-foot heavy-duty cord gives ample reach around the bay
  • High-intensity LED bulb provides clear visibility in low light

6 12 24 V Circuit Tester

The OEMTOOLS 25019 checks circuits on 6, 12 and 24 volt electrical systems found in cars, trucks, RVs, golf carts and lawn mowers. A stainless steel probe and insulated ground clip make basic voltage presence checks simple for DIY owners and professional technicians. The high intensity LED bulb gives clear visual confirmation when a circuit is live. No battery is required for operation.

Sustained Testing Behaviour

The heavy duty 5 foot cord allows reach around the engine bay or under the dashboard while the probe stays in contact with the test point. The LED indicator remains lit as long as voltage is present, so intermittent connections can be spotted during extended checks. The stainless steel probe resists wear from repeated insertion into tight fuse terminals. The tool draws negligible current so it does not load the circuit under test.

Installation and Common Issues

Connect the insulated ground clip to any exposed metal attached to the chassis then touch the probe to the circuit being tested. The fine tip fits 2 mm fuse openings without forcing the terminal. If the LED fails to glow, verify the ground clip is making clean contact and that the replacement bulb OEMTOOLS 25888 is seated correctly. The plastic handle insulates the user but the probe tip remains conductive during use.

How it compares

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

Price $27.99
Cheaper than about 56% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameOEMTOOLS
Product typeVoltmeter
Size & build
Overall height12.1 L x 4.2 W x 1 H inches
Overall width12.1 L x 4.2 W x 1 H inches
Overall length12.1 L x 4.2 W x 1 H inches
More details
Team affiliation1 Piece

Questions about this item

Does the heavy-duty 5 foot cord on the OEMTOOLS 25019 generate noticeable heat when testing 24 V systems for extended periods?

No, the tester draws negligible current through its high-intensity LED bulb and stainless steel probe, so the cord and handle remain cool even during all-day use on 6, 12, or 24 V circuits.

What existing vehicle component must be accessible to use the insulated ground clip on this circuit tester?

You need an exposed metal point bonded to the chassis — such as a bolt, bracket, or bare frame rail — to clip the ground lead before probing fuses or wiring with the 2 mm fine tip.

Will the fine-tipped probe on the 25019 fit the smaller fuse blocks found on older 6 V farm equipment and vintage motorcycles?

Yes, the 2 mm probe tip is designed for tight fuse openings common on legacy 6 V systems, and the tester’s universal 6, 12, 24 V range covers those older electrical architectures directly.

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