TEROS 12 Alternative: Soil Monitoring Built for Irrigation Decisions

The METER TEROS 12 is an established product in its field. This page explains what Agrinovo builds differently, and gives you an honest map of which platform fits which operation.

Two Different Questions About the Same Soil

The METER TEROS 12 and the Agrinovo soil stack both monitor soil moisture continuously, but they answer different questions.

The TEROS 12 measures volumetric water content: how much water the soil contains. That is the unit research runs on, and it is the right measurement for soil physics work, water balance studies, and datasets that need to be comparable across publications.

Agrinovo built around soil tension: how hard the plant has to work to extract that water. Tension is read in centibars, the same unit agronomic irrigation trigger points are published in, which means a grower can act on the number directly. When the MLT tensiometer in an orchard block crosses the crop’s published trigger point, that is the irrigation decision, with no per-soil calibration step in between.

Neither measurement is “better”. They serve different jobs, which is what the fit map below is for.

What Agrinovo Built

A tension-first sensor lineup. The Watermark 200SS granular matrix sensor covers 0-200 cb with no field maintenance and multi-season life. The Irrometer SR, MLT, and LT tensiometers read the wet range at plus or minus 1 cb across three root-zone depths, from shallow vegetable beds to deep orchard profiles. Soil temperature comes from the DS18B20 probe.

A controller that speaks every sensor language. The Omni Genesis has four ports that switch between I2C, analog, digital, 1-Wire, RS-485, Modbus, and SDI-12. That is the architectural difference that matters most in this comparison: the platform is not tied to our own probes. Sensors from any manufacturer, including SDI-12 soil probes, can join the same system.

Cellular from the ground up. Genesis is solar powered and reports over 4G-LTE. There is no base station, no gateway, and no site network to build. A sensor station in a remote block is online the day it is planted in the ground.

One platform for the whole operation. The same dashboard that shows soil tension also carries water quality probes in the reservoir, level sensors on the feed silo, and climate sensors in the greenhouse, with alerts and control outputs across all of them. The IoT soil monitoring solution page shows how the pieces work together for irrigation specifically.

Switching, or Mixing

Moving platforms does not have to mean replacing sensors. Because Genesis reads SDI-12 and analog probes, the practical migration path is often to keep what is in the ground, connect it to a Genesis controller for cellular backhaul and one dashboard, and add tension sensors where irrigation decisions are made. Start with one block, prove it, and expand.

Who Should Choose What

Both are real tools built for different jobs. Choose by your operation, not by marketing.

Choose the METER TEROS 12 if

  • Your work needs volumetric water content (VWC) in m3/m3, the standard unit for research datasets, soil physics models, and academic publication.
  • You need soil electrical conductivity (EC) and temperature from the same probe body as the moisture reading.
  • You already run METER ZENTRA loggers and cloud, and want sensors that drop into that ecosystem with automatic recognition.

Choose Agrinovo if

  • You irrigate. Soil tension is the number irrigation decisions actually run on: it reads how hard roots are working for water, with published trigger points per crop.
  • Your sites have no network infrastructure. Genesis controllers are cellular-native and solar powered, so a remote orchard block reports to the cloud with no gateway, Wi-Fi, or wiring.
  • You monitor more than soil. One Agrinovo platform carries soil, water quality, silo level, and climate sensors on the same controllers and dashboard.
  • You want a modular system sized to your operation by quotation, that grows port by port instead of being replaced.

Side by Side

Agrinovo specifications from our datasheets. METER TEROS 12 specifications from the manufacturer's published materials.

Agrinovo METER TEROS 12
What it measures Soil water tension (plant-available water): 0-80 cb tensiometers, 0-200 cb Watermark 200SS, plus soil temperature (DS18B20) Volumetric water content, soil temperature, and bulk EC (source)
Measurement approach Tension: a direct reading of the force roots work against, the same scale irrigation trigger points are published in Capacitance / frequency-domain technology at 70 MHz (source)
Sensor output Reads into Genesis multi-protocol ports: I2C, Analog, Digital, 1-Wire, RS-485, Modbus, SDI-12 DDI serial or SDI-12 communications protocol (source)
Path to the cloud Omni Genesis controller: solar powered, 4G-LTE cellular, alerts and irrigation automation in one platform METER ZL6, EM60, and EM50 data loggers, or any data acquisition system with 4.0-15 VDC power and serial or SDI-12 communication (source)

Common Questions

Switching from or comparing with the METER TEROS 12

What is the difference between soil tension and volumetric water content?

Volumetric water content (VWC) tells you how much water is in the soil, as a percentage of volume. Soil tension tells you how hard the plant has to work to get that water. Two soils at the same VWC can hold water completely differently, so VWC thresholds must be calibrated per soil type, while tension trigger points (in centibars) transfer between fields and are published per crop. That is why research favors VWC and irrigation scheduling favors tension.

Can a TEROS 12 connect to an Agrinovo Genesis controller?

The manufacturer's manual states the TEROS 12 outputs SDI-12 and works with any data acquisition system that provides 4 to 15 VDC and SDI-12 communication. Genesis ports support SDI-12 alongside RS-485, Modbus, analog, I2C, and 1-Wire. We have not certified every third-party probe, so if you want to keep existing sensors and move platforms, contact us and we will validate your specific sensor mix before you commit.

Which Agrinovo sensor replaces a TEROS 12 for irrigation scheduling?

The Watermark 200SS granular matrix sensor is the closest fit: maintenance-free soil tension over 0-200 cb with multi-season field life. Where you manage high-value crops close to field capacity, Irrometer SR, MLT, or LT tensiometers read the wet range at plus or minus 1 cb. Both feed the same Genesis controller and cloud dashboard, with alerts and automated irrigation.

Does the Agrinovo soil lineup measure soil EC?

No. Our tension-based soil sensors do not measure soil electrical conductivity, and the TEROS 12 does. If in-soil EC is central to your operation, that is a genuine reason to consider the TEROS 12, or to run a dedicated soil EC probe alongside our sensors on the same Genesis controller. Tell us what you need to measure and we will tell you honestly what fits.

Can I run Agrinovo sensors and my existing probes side by side?

Yes. The Genesis controller was built for mixed fleets: its four ports switch between I2C, analog, digital, 1-Wire, RS-485, Modbus, and SDI-12, so tension sensors, third-party probes, and water or climate sensors can report to one dashboard. Most customers migrate gradually rather than replacing everything at once.

Tell Us What You Monitor

We will put together a system sized to your operation, and tell you honestly if we are not the right fit.

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METER TEROS 12 is a product of METER Group. All trademarks are the property of their respective owners. Agrinovo is not affiliated with, endorsed by, or sponsored by METER Group. Information about the METER TEROS 12 is based on the manufacturer's published materials and may change; always confirm current specifications with the manufacturer.