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Agriculture · head to head

Halter vs METER Group ZENTRA

Halter logo

Halter

Agriculture

Solar collar virtual fencing and cow monitoring for dairy and beef grazing

From
9.9/month
Rated
-
Full reviewWebsite
METER Group ZENTRA logo

METER Group ZENTRA

Agriculture

Research-grade soil, plant and atmosphere sensors with the ZENTRA Cloud data platform

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Halter the subscription is permanent and per head, so a 500 cow dairy carries a five-figure annual bill indefinitely and the collars become inert if it lapses; there is no owned-outright end state.; METER Group ZENTRA hardware costs several times what commodity soil probes cost, so a farm that only needs a rough irrigation trigger is paying for calibration accuracy it will never use.
  • They diverge on capability: Halter covers Virtual fencing, METER Group ZENTRA covers TEROS soil sensors.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Halter and METER Group ZENTRA actually diverge.

Attributes where Halter and METER Group ZENTRA differ
AttributeHalterMETER Group ZENTRA
Starting price9.9/monthOn request
Pricing modelPer cow per month plus one-time installPer device subscription
PlatformsiOS, Android, WebWeb, iOS, Android

Identical on both: free tier (No), user rating (Not yet rated), category (Agriculture).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Halter

  • Virtual fencing
  • Remote shifting
  • Heat detection
  • Health alerts
  • Pasture management
  • Solar collars
  • Exclusion zones

Only in METER Group ZENTRA

  • TEROS soil sensors
  • Water potential measurement
  • ZL6 data loggers
  • ZENTRA Cloud
  • Threshold alerts
  • Open API
  • ATMOS weather stations

What people use each for

The jobs each tool is most often brought in to do.

Halter

  • A 600 cow grazing dairy that shifts breaks twice daily and cannot recruit enough staff to do itnot METER Group ZENTRA
  • A beef ranch fencing off riparian margins and wetlands without building physical fencenot METER Group ZENTRA
  • A dairy replacing a separate heat detection collar system with one collar that also does fencingnot METER Group ZENTRA
  • An operation running cell grazing on country where the cost of internal fencing exceeds the collar subscriptionnot METER Group ZENTRA

METER Group ZENTRA

  • A university soil physics group that needs measurements defensible enough for peer reviewnot Halter
  • An irrigation district accounting for water applied and lost across a schemenot Halter
  • A vineyard managing deficit irrigation from water potential rather than volumetric moisture alonenot Halter
  • An environmental consultancy monitoring a remediation or drainage site where the data may be contestednot Halter

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Halter

  • The subscription is permanent and per head, so a 500 cow dairy carries a five-figure annual bill indefinitely and the collars become inert if it lapses; there is no owned-outright end state.
  • On-farm tower infrastructure is a separate up-front install cost that is not in the headline per-cow price, and terrain with hills or bush can require more towers than the initial quote assumed.
  • Coverage is concentrated in New Zealand, Australia and parts of the United States; buyers elsewhere face no local support, no local install crew and uncertain regulatory acceptance of virtual fencing.
  • Virtual fencing is not universally legal or accepted: some jurisdictions and some organic or welfare certification schemes restrict aversive stimulus devices, which can decide eligibility before price is even discussed.
  • Total vendor lock-in on collar, towers, app and animal data means there is no second source for a replacement collar and no way to keep the fencing working if the commercial relationship ends.

METER Group ZENTRA

  • Hardware costs several times what commodity soil probes cost, so a farm that only needs a rough irrigation trigger is paying for calibration accuracy it will never use.
  • ZENTRA Cloud is a per-device subscription, so a large sensor network carries a recurring bill that grows linearly with every probe added and is easy to underestimate at design stage.
  • The three-year subscription bundled with the ZL6 Pro means the renewal decision arrives exactly when a typical research grant has ended, which is how long-running datasets get abandoned.
  • METER sells measurement rather than recommendations; there is no irrigation scheduling engine, so someone has to turn the numbers into decisions or buy a second platform that will.
  • Installation quality dominates results with soil sensors, and a badly installed TEROS probe produces confidently wrong data, so the accuracy you paid for depends on field technique the vendor cannot supply.

Pricing, plan by plan

Halter

9.9/month
  • Core$9.9/month
    • Virtual fencing and remote shifting
    • Per cow per month
    • On-farm tower infrastructure charged separately
  • Pro$undefined/month
    • Everything in Core
    • Heat detection and reproduction tools
    • Health and behaviour alerts
  • Unlimited$undefined/month
    • Everything in Pro
    • Full feature set for larger operations
    • Pasture and residual management

METER Group ZENTRA

On request
  • ZENTRA Cloud$undefined/year
    • Priced per activated device, pay for what you use
    • Three year subscription included with the ZL6 Pro logger
    • Cellular data included in the device subscription

Which should you pick?

Choose Halter if

  • You need virtual fencing.
  • You work on iOS, Android, Web.
  • You also want remote shifting.
Halter review

Choose METER Group ZENTRA if

  • You need teros soil sensors.
  • You work on Web, iOS, Android.
  • You also want water potential measurement.
METER Group ZENTRA review

Questions people ask

Is Halter or METER Group ZENTRA better?
Neither clearly leads. Halter starts at 9.9/month and METER Group ZENTRA at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Halter or METER Group ZENTRA?
Halter starts at 9.9/month and METER Group ZENTRA at On request.
Does Halter or METER Group ZENTRA run on more platforms?
Halter runs on iOS, Android, Web. METER Group ZENTRA runs on Web, iOS, Android.
What is Halter best used for?
Halter is most often used for a 600 cow grazing dairy that shifts breaks twice daily and cannot recruit enough staff to do it, a beef ranch fencing off riparian margins and wetlands without building physical fence, a dairy replacing a separate heat detection collar system with one collar that also does fencing, an operation running cell grazing on country where the cost of internal fencing exceeds the collar subscription. Of those, a 600 cow grazing dairy that shifts breaks twice daily and cannot recruit enough staff to do it and a beef ranch fencing off riparian margins and wetlands without building physical fence are not what METER Group ZENTRA is typically brought in for.
What can Halter do that METER Group ZENTRA cannot?
Halter covers Virtual fencing, Remote shifting, Heat detection, Health alerts. METER Group ZENTRA covers TEROS soil sensors, Water potential measurement, ZL6 data loggers, ZENTRA Cloud.

Answered from the vendors’ own pages

Halter: Do I buy the collars or rent them?

In practice you are buying into a per-cow monthly subscription plus a one-time install for the towers. The collars are not useful without an active subscription.

METER Group ZENTRA: Is ZENTRA Cloud included with the loggers?

A three-year subscription is included with the ZL6 Pro. Other loggers require a separate per-device subscription.

Halter: What does it actually cost for 500 cows?

Starting from around NZ$9.90 per cow per month, that is roughly NZ$59,000 a year before the one-time tower infrastructure cost, and it recurs every year.

METER Group ZENTRA: Do I need a separate cellular data plan?

No. Cellular data is covered within the device subscription rather than billed as a separate SIM contract.

Halter: Can I finance it?

New Zealand dairy farmers can finance the install through ANZ, ASB, BNZ or Westpac over two years, and paying the subscription up front attracts a discount.

METER Group ZENTRA: Will it tell me when to irrigate?

No. METER provides measurement, not scheduling recommendations. You either interpret the data yourself or feed it into a scheduling platform.

Halter: Does it replace heat detection collars?

Yes on the higher tiers. That is the main reason dairies justify the cost, because it removes a second per-cow system.

METER Group ZENTRA: Why is it more expensive than commodity soil probes?

Individual sensor calibration and documented measurement physics, which is what makes the data hold up in research, regulatory and legal contexts.

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