Suppliers to the Subsurface Utility Engineering Community
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SubSurface Instruments - ML-1 & ML-1M Magnetic Locators

The SubSurface Instruments magnetic location equipment are engineered by the most experienced design and manufacturing team available in the nation today.

SubSurface Instruments ML-1 Magnetic LocatorML-1 Magnetic Locator (audio only)

SubSurface Instruments ML-1M Magnetic Locator w/MeterML-1M Magnetic Locator

The ML-1M features a digital meter that provides for visual signal strength, polarity indication, gain setting plus battery life display. These versions are engineered to operate identically with the same controls as the ML-1. The metered model (ML-1M) adds features without adding complexity.

Use this equipment to find:

  • Corner markers (iron or steel)
  • Mag nails and PK nails
  • Valve and curb boxes
  • Iron and steel pipes
  • Well casings
  • Manhold & Utility Box Covers
  • Steel drums & tanks
  • Septic tank handles
  • Energized electric cables
  • Marker magnets
  • Unexploded ordinance (UXO)

Product Features:

  • Easy one-hand operation.
  • Easy keypad switches, no knobs.
  • Lightweight - only two pounds (including batteries).
  • Uses two regular alkaline 9-volt batteries (shipped with 4).
  • Strong monotube construction provides structural integrity.
  • Microprocessor retains volume and gain settings from last use.
  • Storage bag Included.
  • Optional ABS Hard Case.


Proudly made in the USA