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Havahart® Fence Free Underground Dog Fence

model #: 5140G

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  • Customizable Fence Boundary For All Property Types
  • State of the Art Intelligent Electronics for Secure and Effective Pet Containment 
  • 1/3 Acre Roaming Area - with Expansion Kits, up to 13 Acres
  • Emits a Wide Signal Field that is Customizable from 3-24 ft.
  • Safety Features & Surge Protection
  • For Use on Dogs 6 months and Older and Weighing Over 8lbs.
  • Training is Key – 3x a Day for 15 minutes over 2 Weeks 
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US Availability: In-Stock
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How Does It Work?

The Havahart® Fence Free Underground Dog Fence Comes With Wire That You Bury Around the Perimeter of Your Containment Area, Creating a Closed Loop.

Once you have buried the Wire and your loop is complete, the Fence Free Controller creates your dog's Fence Boundary. Surrounding this Fence Boundary is a Trigger Zone or Warning Zone that spans 3 to 24 feet, and is the area in which a correction is issued. When the Collar crosses the Trigger or Warning Zone, an audible warning tone sounds, which will last as long as your dog remains in the Warning Zone.


Watch Our Short Benefits Video

What's In The Box?

How Do I Set Up The Fence?

Design Your Boundary and Lay the Boundary Wire On Top of the Ground

Install the Wall Unit

Set Up the Collar

Ensure the Wire is Working Properly, then Install the Boundary Wire

Place the Training Flags

Fit the Collar on Your Dog

Train Your Dog To the Fence


Total time = depends on property size.


For best results, we recommend you follow the 3-week training program outlined in the Instruction Manual, so your dog has ample time to learn the Fence Boundary.

System Safety Features

Run-Through Protection

Your dog will hear a warning tone as he approaches the Fence Boundary, receive a low-level Static stimulus the closer he gets, and the full-level Static stimulus as he reaches the Boundary. This correction cycle deters your dog from crossing the Fence Boundary.

Over-Correction Protection

In the event that your dog becomes trapped or confused in the Trigger Zone, the Havahart® Fence Free Underground Dog Fence will limit stimulation.

Questions & Answers

Yes. The Fence Free Underground Dog Fence has no landscaping restrictions.

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Yes, and unlike our Wireless Fences, there is no need to ensure this is excluded from the Fence Boundary.

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Yes, digging is required in order to install this Fence. The Wire should be buried at depth of ½ inch. If your Fence Boundary includes a driveway, you’ll need to cut ½ inch deep cut, using a circular saw and masonry blade.

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Now I have a vivacious, sociable golden labrador that stays in her own yard.


I would say this product works very well …It makes it so much easier when they have to go out!


Great fence that allowed me to train my dog.


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Customer Support: Call (800) 800-1819 or Write »



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