Customer Service
M-F 8:00am - 4:30pm CST



Parks & Recreation

Customer Service

Famous Monuments

Learn More
on the latest in
RFID Utility Location
InfraMarker RFID System Website
Visit our sister site for the
latest news, announcements & innovations in underground
 utility location.

Find buried PVC and all utilities economically and quickly

Magnetic location is an extremely efficient utility locating technology, especially when used in conjunction with DEEP-1 magnetic markers. Firms and agencies that implement magnetic location and magnetic marker utility marking schemes are likely to find and mark subsurface utilities more quickly and accurately, and will suffer less damage to underground assets.

  • DEEP-1 magnetic markers gives you fast, low cost, permanent, and precise magnetic location for all underground utilities
  • Ideal for all subsurface marking...can be buried deep and away from surface digging.

DEEP-1 Video - Underground Magnets for Utility Marking


Berntsen DEEP-1 magnetic markers are the standard of underground location. Hundreds of thousands of our magnetic markers are in use in nearly every aspect of industry and government.

Berntsen DEEP-1 Magnetic Utility MarkersDEEP-1 markers take chance out of equation in marking and mapping underground locations. For example, suppose you have a buried PVC (gas, water, sewer, etc.) pipeline or plastic phone duct and need to find a "T" "Y" or stub. With a DEEP-1, no time is wasted hooking up for a tone test set. No need to worry that a tracer tape or wire is broken. Search the area with a Schonstedt magnetic locator you can find the exact spot you need.

The DEEP-1 can mark anything...even a hole in the ground. Major mineral exploration companies use the DEEP-1 magnetic marker to re-locate test borings. The colorful plastic case can even be stamped with data in the field and data recorded on the maps for future reference. Fast recovery assures mining operations begin at the proper location.

The DEEP-1 consists of a high-strength, permanent magnetic material in a rugged
polyethylene color-coded case. If installed properly, the DEEP1 can be located up to 3 to 4 feet (0.9 m to 1.5 m) deep, depending on soil conditions.

The DEEP-1 Magnetic Underground Marker for Utilities is available in five colors, which represent the various color designations for the different types of utilities (as established by the Underground Service Alert (U.S. Center) and the American Public Works Association (APWA). Colors include: Blue (water), Green (sewer), Orange (communications, Red (electric, Yellow (gas).

DEEP-1 Magnetic Utility Marker Whitepaper

Faster, Stronger, More Precise:
An Overview of Magnetic Markers and Magnetic Location in Utility Marking

This FREE whitepaper includes:

  • A comprehensive study on the use of magnetic markers in underground utility location
  • Field lab testing comparing locates at various depths
  • Includes case study on location of water & sewer networks in the nation's fifth snowiest city

Click here to view this whitepaper

Berntsen International, Inc.
  • 1-800-518-0934
  • All other countries:
  • +1-608-249-8549
  • PO Box 8670
  • Madison, WI 53708-8670
We accept VISA, Master Card, American Express and Discover Card.