WILD TECH

2026-08-21 · Field Report

Keeping Cattle In Without a Fence: Nofence's $309 GPS Collar

Prices are US list prices at the time of publication. Shipping, duties and local taxes vary by country — check with the manufacturer before ordering.

Building four-wire fence costs $15,000 a mile. That is the median rate Colorado State University Extension collected from custom operators in its Eastern Region, and the same figure New Mexico State University used to price fence on a 360-cow ranch. The same $15,000 buys 48 GPS collars. The fence stays where you built it. The collars do not.

Video: RidgeLife Ramblings — independent footage

The Machine

The Nofence C2.5 is a solar-charged collar that hangs on a cow’s neck and holds her inside a boundary you draw on a phone. As the animal approaches the line the collar plays a rising audio tone — rated at 82 dB at 3.3 feet. If she keeps walking, a pulse goes through the collar chains. Nofence says most animals learn to turn on the sound alone within days.

US pricing is published in tiers. $349 per collar for 0–24 collars, $309 at 25 or more. Every collar carries a five-year warranty and the first twelve months of subscription. After that the subscription is $45 per collar per year up to 99 collars and $35 at 100 or more.

The hardware is a GNSS receiver (GPS and GLONASS) with LTE Cat-M1 and 2G radios, IP67 sealed, rated from −4°F to 140°F, weighing about 3.2 pounds on the animal. There is no tower to install: the company states plainly that “GPS keeps boundaries accurate around the clock, independent of cellular coverage,” and the cellular link only syncs the app. That matters, because the university model this piece is measured against assumes four $10,000 LoRaWAN towers.

The Numbers

The comparison is what a working ranch pays to fence cattle. NMSU’s Bulletin B-133, published March 2025, prices a representative New Mexico ranch: 360 head, 6,000 private acres, 75 miles of physical fence.

MetricBuild the fenceCollar the cattleSource
Custom fence building, 4 wires$15,000 per mile (Eastern CO median)CSU Extension
Same rate, Western Colorado$8,000 per mile medianCSU Extension
75 miles on the model ranch$1,125,000 to buildNMSU B-133
Annual cost, 360 cows$67,500$32,328NMSU B-133 / our math
Per cow, per year$188$89.80NMSU B-133 / our math
Hardware for 360 cows$1,125,000$111,240Our math
Collar, 0–24 units$349 eachNofence
Collar, 25+ units$309 eachNofence
First 12 months of subscriptionIncludedNofence
Subscription after, under 100 collars$45 per collar/yearNofence
Subscription after, 100+ collars$35 per collar/yearNofence
Service life used25 years5-year warrantyNMSU B-133 / Nofence
Weight on the animalapprox. 3.2 lbNofence
Battery charging temperature32°F to 113°FNofence
Pulse energy in joulesDATA NOT AVAILABLE FROM SOURCENofence
Collar life past the warrantyDATA NOT AVAILABLE FROM SOURCENofence
NMSU’s own LoRaWAN collar model$92.71 per cow/yearNMSU B-133

The arithmetic, in the open. NMSU builds 75 miles at $15,000 for $1,125,000, adds 2% a year in maintenance, spreads it over a 25-year life, and lands on $67,500 a year — $188 per cow.

Now price the collars on the same herd. Three hundred sixty collars at the 100-plus tier is $111,240, with the first year of subscription in the box. Years two through five cost $12,600 a year. Total over five years: $161,640, or $32,328 a year, or $89.80 per cow per year.

That number is worth sitting with. NMSU modeled a completely different system — LoRaWAN towers, $200 collars, swappable batteries, hired labor — and got $92.71 per cow. Two routes, built on different hardware, land within $3 of each other, and both come in at roughly half the fence.

What Breaks

It holds your cattle in. It holds nothing out. This is the honest limit, and it eats a chunk of the math above. NMSU’s companion Bulletin B-132 says it directly: “The exclusive use of virtual fencing as an exterior fence might not work well in all situations, especially in ‘fence-out’ states such as New Mexico.” A boundary fence keeps the neighbor’s bull and the highway on their own side of the line. Collars replace interior cross-fencing well. They do not retire your perimeter, and the $188 figure assumes all 75 miles go away.

On cheap ground the advantage mostly disappears. The same Colorado survey that reports a $15,000 median in the east reports $8,000 a mile in the west. Run the model ranch at $8,000 and the fence costs $36,000 a year, or $100 per cow — against $89.80 for collars. Two-to-one becomes a rounding error. Fence economics are terrain economics.

Nothing physically stops the animal. A wire is a wall. The collar is a warning followed by a pulse, and Nofence is candid that livestock which want out will get out; you get a notification, not a barrier. Pulse energy in joules is not published: DATA NOT AVAILABLE FROM SOURCE.

Winter and calves. The battery charges only between 32°F and 113°F, so the coldest weeks are the weeks solar does least and charging does least. Only mature animals wear collars — calves follow their mothers, uncollared, and that is a behavioral assumption rather than a spec.

You cannot check out with a card. There is no cart on the site. Pricing is public, the purchase is a quote through a regional sales specialist, and the flow starts by checking whether your location is served. Shipping lead time: DATA NOT AVAILABLE FROM SOURCE.

Who Should Buy This

The operation whose fence bill is already due. If 20 miles of wire is at the end of a 25-year life, that is $300,000 of rebuilding at the eastern median. Collars for 360 head cost a third of it and go where the grass is. Replacement timing, not novelty, is what makes this pencil.

The rotational grazier. The real return is not fence money at all — it is moving a boundary from the truck instead of building a new one, several times a season, on ground you would never cross-fence at $15,000 a mile.

The 25-cow herd, carefully. Twenty-five collars run $7,725 — about half a mile of fence — and $97.80 per cow per year over five years. Note the tier edge: 24 collars at $349 is $8,376, while 25 at $309 is $7,725. The twenty-fifth collar saves you $651.

Not for: anyone whose problem is a perimeter, a highway or a fence-out statute. Not for herds that mostly stay put behind fence that is not due for replacement. And not for an operation that wants a one-time capital cost — a fence stops billing you the day it is finished, and a collar never does.

The Stack

No affiliate links in this issue — our affiliate program applications are still in progress. When a link earns us a commission, we will always say so. Verdicts are never for sale.

If interior cross-fencing is the cost you are trying to kill, the Nofence cattle collar at $309 in quantities of 25 or more is the number that matters: solar, GNSS, IP67, five-year warranty, first year of subscription included, and $89.80 per cow per year over that warranty on a 360-head herd.

If you are testing the idea rather than converting a ranch, buy 25 rather than 24. At $349 versus $309 a collar, the smaller order costs more in total — $8,376 against $7,725.

Pay annually, not monthly. The published rates are $45 a year against $6.50 a month; twelve of those months is $78, so monthly billing costs 73% more for the same service.

And before any of it, read NMSU B-132 on training and on fence-out states. It is free, it is written by people with no collars to sell, and it will tell you in a page whether your perimeter can ever come down.

We earn nothing on any of these links. That is why the number above is $89.80 and not a slogan.

Black cattle wearing Nofence GPS collars in an open winter pasture, a rancher walking beside the herd
Photo: Nofence

Produced under the editorial standards of editor Nicolás Galindez. Spotted an error? [email protected] — the editor reads every reply.