The Pinpointer: Underground Secondary Fault Locator

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Accurately locate underground cable faults…within inches

Direct-Buried Cable Fault Finder

Accurately & efficiently locate faults. No unnecessary digging.

For more than 45 years, the Pinpointer has saved substantial time and money for hundreds of electrical utilities, municipalities, PUD’s, contractors, oilfields, RV parks, solar-panel fields, and agricultural farms. Known for reliability and dependability, the Pinpointer is the preferred fault-locating tool for many utilities across the United States.

Highly Accurate     |     User Friendly     |     Dependable

Even works under snow or frozen ground, at street light circuits, at the meter rise, under driveways, sidewalks, and streets.

*Limitations: Will not work in conduit. See the Arc Chaser for an underground fault locator that works with conduit/shielded cable.

Instructional Video:

No costly, unnecessary digging:

  • Earth gradient method ignores phantom images.
  • Highly accurate and reliable – trusted by utilities for over 45 years!
  • An economical locator solution. Works in all conditions.
  • Cable proof-test instantly determines whether cable is good or bad.
  • You don’t even need to know the exact route of the cable.
  • Easily stored in a utility truck; rugged and durable.

Included with The Pinpointer:

  • Transmitter – 2500VDC Pulse
  • Detector – Variable Sensitivity
  • Detector Cables (Red & Black)
  • Grounding Probes with Extensions & Cables (Red & Black)
  • Ground Rod
  • 2-Wire, 12V Battery Power Supply Cord
  • 2Wire, 120VAC Power Supply Cord
  • Rugged, Durable Protective Housing
  • Operations Manual

Optional Accessories:

  • A-frame Detector Adapter (optional)
  • PN: HJA-470-210 
  • Make underground secondary cable-fault locating even easier, when you pair the Pinpointer with the A-frame Adapter. The Pinpointer detector easily attaches to the A-frame with two screws and pre-wired banana plugs.


  • Rechargeable Battery Kit (optional)
  • PN: HJA-470-109 
  • If you are out in the field and do not have access to a power source such as a truck battery, we can build a rechargeable battery kit into your Pinpointer to power the transmitter. Charging cables included.

Pinpointer Applications:

  • Electric Utilities/PUD’s/COOP’s
  • Electrical Contractors
  • Oil Fields
  • Irrigation Systems – Golf Courses, Agriculture, Etc.


The Pinpointer Brochure

Pinpointer Product Demonstration (PowerPoint)

The Pinpointer Manual

Our Customers Say…

“I just wanted to let you know how impressed I am with the Pinpointer. I’ve located approximately 40 faulted conductors in 3 days, and have not wasted an ounce of fuel excavating these locations to find nothing. Most of my locates have been right on top of the fault. Once again Thank You!”

-Anderson & Wood Construction Company

Our Customers Include:

  • American Electric Power
  • Anderson & Wood Construction Company
  • EMEPA/ East Mississippi Power
  • Eugene Water and Electric Board
  • Eversource Energy
  • Lynn Boyer
  • Maui Electric Company
  • National Grid
  • PSEG
  • Connecticut Power & Light / Eversource
  • & more – Contact the Arnett sales team at for customer references.

Tags: secondary fault finder, secondary fault locator, power cable fault finder, power cable fault locator, electrical fault finder, underground fault locator
WARNING: Cancer and Reproductive Harm –

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