TEROS 12 Soil Moisture, Temperature and EC Sensor.

What will you choose?

With all of the different soil moisture sensor options available today, it can be difficult to know which one to choose.

At METER, we believe that choosing the right sensor should be simple. Why make compromises when you don't have to?

No compromises

This is why we developed the TEROS 12 soil moisture sensor. The sensor combines all the features you need. So you never have to make a compromise between performance, reliability and price.

The details

The all-new TEROS 12 sensors use capacitance sensing technology to deliver an excellent price-to-performance ratio in a device that is easy to use. An increased volume of influence allows you to cover more ground with less sensors.

Our new calibration procedure maximizes accuracy and minimizes sensor-to-sensor variability (less than 1%). So you can count on the same level of performance from every sensor.

Also, ultra-robust TEROS 12 sensors are simple to install. Soil temperature and an improved electrical conductivity (EC) measurement are included with every sensor. EC can be used to monitor solute movement in soil and you have all the information for temperature corrections, or if you just need temperature to understand biophysical processes in the soil.

And now, you can connect TEROS 12 sensors to the EM60G for simple, plug-and-play data logging and cloud-based data storage and management. Because what good are data if they aren't accessible when you need them?

An ideal solution

TEROS 12 soil moisture sensors combine accuracy, affordability, simplicity, and reliable functionality-all connected and delivered through the cloud-making them the ideal solution for soil moisture measurement.

Feature Specification
Accuracy Generic calibration: ±0.03 m3/m3 (±3.00% VWC) typical in mineral soils that have solution EC <8 dS/m
Medium specific calibration: ±0.01-0.02 m3/m3 (±1-2% VWC) in any porous medium
Apparent dielectric permittivity (Ea): 1-40 (soil range) , ±1 Ea (unitless) 40-80, 15% of measurement
Resolution 0.001 m3/m3
Range Mineral soil calibration: 0.00-0.62 m3/m3
Soilless media calibration: 0.0-1.0 m3/m3
Apparent dielectric permittivity (Ea): 1 (air) to 80 (water)
NOTE: The VWC range is dependent on the media the sensor is calibrated to. A custom calibration will accommodate the necessary ranges for most substrates.
Dielectric measurement frequency 70 MHz
Temperature Range:-40 to 60 °C
Resolution: 0.1 °C
Accuracy: ±1 °C
Bulk electrical conductivity (ECb) Range: 0-20 dS/m (bulk)
Resolution: 0.001 dS/m
Accuracy: ±3% of measurement
Output DDI serial or SDI-12 communications protocol
Data logger compatibility Any data acquisition system capable of 4.0- to 15-VDC power and serial or SDI-12 communication
Dimensions Length: 9.4 cm (3.70 in)
Width: 2.4 cm (0.95 in)
Height: 7.5 cm (2.95 in)
Operating temperature range Minimum: -40 °C
Typical: NA
Maximum: 60 °C
Cable length 5 m (standard)
75 m (maximum custom cable length)
Connector types 3.5-mm stereo plug connector or stripped and tinned wires
Warranty One year, parts and labour

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Non UK/Ireland Customers

Non UK/Ireland Customers, please contact METER Environment at:www.metergroup.com/environment/

TEROS 12 Volume of Influence


Click here for the Soil Sensors Comparison Page.

TEROS 12 Manual
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TEROS 12 Quick-start
Size: 385.2 KB (394,489 bytes)

TEROS 12 Integrators Guide
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Quotation Request

Email us to request a quotation for the TEROS 12 Soil Moisture, Temperature and EC Sensor.