Best Virtual Fencing & Grazing Tools (2026)

Virtual fencing is one of the most talked-about technologies in ranching. The idea is simple: instead of building and moving wire, cattle wear a GPS collar, you draw boundaries on a phone or computer, and the collar uses sound cues and, if needed, a mild electric pulse to keep animals inside. It promises easier rotational grazing, keeping cattle out of creeks and sensitive areas, and moving herds without a crew. It is also new, and costs and coverage vary a lot. This guide explains how it works, what to ask, and who sells it. We have not field-tested these systems; details come from vendor sites linked below.

How virtual fencing works

Each animal wears a collar with GPS, a battery (often solar-assisted), and a way to communicate with base stations or cellular networks. When an animal nears the virtual boundary it hears an audio cue; if it keeps going, it gets a short electric stimulus. Cattle typically learn to turn at the sound. Systems differ mainly in collar cost and battery life, how data gets back (your own base station vs. a cellular network), and whether pricing is a collar purchase, a subscription, or both.

Questions to ask before you buy

• Coverage: Does it need a base tower on your land, and how many acres does one tower cover in your terrain?
• Training: How long do the vendors say it takes animals to learn the system, and do they require a physical fence during training?
• Cost per head: Collar price, annual subscription, and replacement cost for lost or broken collars.
• Battery: Solar charging helps in Texas sun; ask about performance in cloudy winters.
• Perimeter: Most operations still keep a physical perimeter fence; virtual fencing usually replaces interior cross-fencing, not boundaries along a highway.
• Legal: Check with your state animal health agency and insurer about requirements for livestock near roads.

The main vendors

Halter

Halter makes solar-powered collars and markets them for virtual fencing, pasture management, herding and health monitoring. It started in New Zealand dairy and has expanded to beef. Pricing is not posted on the site; contact the company.

Nofence

Nofence, from Norway, sells GPS collars for cattle, sheep and goats with a phone app. Because it supports small ruminants it is interesting for mixed operations.

Vence (Merck Animal Health)

Vence is now part of Merck Animal Health and targets rangeland cattle, pairing collars with base stations for large pastures.

Gallagher

Gallagher, best known for electric fence energizers and weighing, also offers virtual fencing technology (eShepherd) in some markets. Check its US site for availability.

Supporting tools for grazing

Virtual fencing is only as good as your grazing plan. Planning software like PastureMap or AgriWebb helps decide where to move cattle. Free public tools are underused: the Rangeland Analysis Platform shows vegetation cover and production trends, Grass-Cast forecasts grassland productivity for the Great Plains and western US, and USDA's Web Soil Survey maps your soils.

Is it worth it?

For a small herd on a few well-fenced pastures, traditional polywire and a good energizer from Gallagher, Patriot, Zareba or Parmak is still far cheaper. Virtual fencing makes the most sense where cross-fencing is expensive or impractical: rough country, leased ground you can't fence, or operations moving cattle daily. Get a written quote per head for at least two vendors, ask for references from ranches in your region, and consider starting with one group of animals. Cost-share programs through USDA NRCS may help with grazing infrastructure; ask your local NRCS office whether virtual fencing qualifies in your county.

Bottom line

Virtual fencing is real and improving, but it is a premium tool. Treat vendor claims as starting points, insist on per-head pricing in writing, and pair it with a grazing plan using the free tools above.

Where virtual fencing fits on a Texas place

North and Central Texas ranches often have a mix of improved pasture, brushy draws and creek bottoms. Virtual boundaries are attractive for keeping cattle off a creek during a wet spell, deferring a pasture after a burn, or strip-grazing a winter wheat or ryegrass field without building temporary fence. They are less attractive where cell coverage is poor and a base station would be needed, or where the herd is small enough that a reel of polywire does the job.

A sensible pilot

If you're curious, start small. Ask a vendor whether they offer a pilot or a minimum order, and fit collars on one manageable group, such as dry cows, rather than the whole herd. Keep your existing fences in place, track how often animals test the boundary, and log the hours you actually save moving cattle. After a season you'll have your own numbers instead of relying on marketing. Keep notes on collar losses and battery issues, because those drive long-term cost.

For a deeper look at how costs are usually structured, see our page on virtual fencing cost.

FAQ

Does virtual fencing work for bulls?

Vendors differ, and bulls during breeding season are a tough test for any fence. Ask each vendor directly what classes of cattle their system is designed for.

What if the collar battery dies?

An animal with a dead collar has no virtual boundary. That's a key reason to keep a physical perimeter and to ask how the app alerts you to low batteries.

How does pricing usually work?

Vendors in this space generally combine hardware and an ongoing subscription, and few publish prices publicly. Ask for the total cost over three years per head, including base stations and replacement collars, so you can compare against building permanent cross-fence.

Tools in this guide

1. Halter

   Solar-powered cattle collars for virtual fencing, herding and health monitoring.

   Pricing: See site · Grazing & Pasture

2. Nofence

   GPS collar virtual fencing system for cattle, sheep and goats.

   Pricing: See site · Grazing & Pasture

3. Vence

   Virtual fencing and livestock monitoring for rangeland cattle, now part of Merck Animal Health.

   Pricing: See site · Grazing & Pasture

4. Maia Grazing

   Grazing management platform for planning pasture and herd moves; its site now describes it as a legacy platform from Atlas Ag.

   Pricing: See site · Grazing & Pasture

5. PastureMap

   Grazing management app for mapping pastures and planning rotations.

   Pricing: $10/month for 50 animals, 1 member listed (pasturemap.com/pricing); larger tiers on site · Grazing & Pasture

6. Pasture.io

   Satellite pasture growth and grazing monitoring tool.

   Pricing: Fundamental $1,099/yr or $126/mo; satellite add-on per hectare (pasture.io/plans; currency may be AUD) · Grazing & Pasture

7. Rangeland Analysis Platform

   Free online tool showing vegetation cover and production trends for US rangelands.

   Pricing: Free · Grazing & Pasture

8. Grass-Cast

   Free forecast of grassland productivity for the western US and Great Plains.

   Pricing: Free · Grazing & Pasture

9. Web Soil Survey

   Free USDA-NRCS soil maps and data for your land.

   Pricing: Free · Grazing & Pasture

10. Gallagher eShepherd

    Gallagher's animal management lineup, including livestock weighing, EID and virtual fencing technology.

    Pricing: See site · Grazing & Pasture