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Agriculture · head to head

METER Group ZENTRA vs Rachio Pro

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
Rachio Pro logo

Rachio Pro

Smart Home

Contractor platform and Pro Series controllers for managing client irrigation across many properties

From
$10/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: 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.; Rachio Pro it is Wi-Fi first, so client properties without reliable wireless need Cellular Connect at around $389 plus $10 to $15 a month, which turns a one-time sale into a recurring cost the contractor has to bill on.
  • They diverge on capability: METER Group ZENTRA covers TEROS soil sensors, Rachio Pro covers Pro Series controllers.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

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

Attributes where METER Group ZENTRA and Rachio Pro differ
AttributeMETER Group ZENTRARachio Pro
Starting priceOn request$10/month
Pricing modelPer device subscriptionOne-time controller purchase with optional cellular subscription
CategoryAgricultureSmart Home

Identical on both: free tier (No), platforms (Web, iOS, Android), user rating (Not yet rated).

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 METER Group ZENTRA

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

Only in Rachio Pro

  • Pro Series controllers
  • Business accounts
  • Pro Properties dashboard
  • Wire fault diagnostics
  • Weather-based skipping
  • Flow monitoring
  • Cellular Connect

What people use each for

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

METER Group ZENTRA

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

Rachio Pro

  • An irrigation contractor servicing a hundred residential clients who needs alerts rather than scheduled site visitsnot METER Group ZENTRA
  • A landscape company that keeps client controller access when a technician resignsnot METER Group ZENTRA
  • A property manager with several light commercial sites wanting leak detection before the water bill arrivesnot METER Group ZENTRA
  • A contractor installing at a site with no reliable Wi-Fi who needs a cellular fallbacknot METER Group ZENTRA

Where each one falls short

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

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.

Rachio Pro

  • It is Wi-Fi first, so client properties without reliable wireless need Cellular Connect at around $389 plus $10 to $15 a month, which turns a one-time sale into a recurring cost the contractor has to bill on.
  • The Pro Series waters identically to the consumer Gen 3; the premium buys enclosure, warranty and diagnostics rather than better irrigation, which is a hard sell to a price-driven client.
  • It is residential and light commercial in scale, with no realistic capability for municipal parks, sports fields or agricultural blocks where flow-based mainline shutdown and two-wire decoders are expected.
  • Everything depends on Rachio's cloud; if the service is down or the account lapses, the controller falls back to a basic local schedule and the contractor loses the remote visibility they sold.
  • North America is the real market, so weather data quality, distributor availability and support outside the United States and Canada are materially worse than the product itself.

Pricing, plan by plan

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

Rachio Pro

$10/month
  • Pro Series controller$undefined/one-time
    • Sold through irrigation distributors, not retail
    • Four year warranty
    • Wire fault diagnostics included
  • Pro business account$undefined/month
    • No separate charge for the contractor dashboard and role management
    • Business-level ownership of client properties
    • Alerts, weather skips and flow anomalies across all sites
  • Cellular Connect$10/month
    • Around $389 for the hardware
    • First year of service included
    • $10 per month for one carrier, $15 for all three

Which should you pick?

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

Choose Rachio Pro if

  • You need pro series controllers.
  • You work on Web, iOS, Android.
  • You also want business accounts.
Rachio Pro review

Questions people ask

Is METER Group ZENTRA or Rachio Pro better?
Neither clearly leads. METER Group ZENTRA starts at On request and Rachio Pro at $10/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, METER Group ZENTRA or Rachio Pro?
METER Group ZENTRA starts at On request and Rachio Pro at $10/month.
Does METER Group ZENTRA or Rachio Pro run on more platforms?
Both run on Web, iOS, Android, so platform support will not decide this one for you.
What is METER Group ZENTRA best used for?
METER Group ZENTRA is most often used for a university soil physics group that needs measurements defensible enough for peer review, an irrigation district accounting for water applied and lost across a scheme, a vineyard managing deficit irrigation from water potential rather than volumetric moisture alone, an environmental consultancy monitoring a remediation or drainage site where the data may be contested. Of those, a university soil physics group that needs measurements defensible enough for peer review and an irrigation district accounting for water applied and lost across a scheme are not what Rachio Pro is typically brought in for.
What can METER Group ZENTRA do that Rachio Pro cannot?
METER Group ZENTRA covers TEROS soil sensors, Water potential measurement, ZL6 data loggers, ZENTRA Cloud. Rachio Pro covers Pro Series controllers, Business accounts, Pro Properties dashboard, Wire fault diagnostics.

Answered from the vendors’ own pages

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.

Rachio Pro: Is Rachio Pro a different product from Rachio?

It is the trade channel: Pro Series controllers sold through irrigation distributors plus a business account with company-level ownership of client properties. The irrigation logic is the same.

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.

Rachio Pro: Does the Pro business account cost anything?

The contractor dashboard and role management are not separately charged. The costs are hardware and, where needed, cellular service.

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.

Rachio Pro: What if a client site has no Wi-Fi?

Cellular Connect is around $389 of hardware with the first year included, then about $10 a month for a single carrier or $15 for access to all three.

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.

Rachio Pro: Can I use it on a municipal park or sports field?

Not realistically. It lacks the two-wire decoder support and flow-based mainline shutdown that public landscape specifications generally require.

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