Designed by soil scientists—for soil scientists

Soil Science

Characterizing soil properties is complicated. You've got enough on your mind. That’s why we created a complete system of easy-to-use soil-focused environmental sensors, loggers, software, and lab equipment that puts near-real-time data at your fingertips—so you can publish more, and work less.

Education guides

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The researcher’s complete guide to soil moisture

Everything you need to know about measuring soil moisture—all in one place.
Education guides75 min read

The researcher’s complete guide to water potential

Everything you need to know about measuring water potential—what it is, why you need it, how to measure it, method comparisons. Plus see it in action using soil moisture release curves.
Education guides45 min read

Accuracy is now almost effortless.The TEROS soil moisture line eliminates barriers to good accuracy by combining flawless installation, robust construction, a large volume of influence, and advanced cloud data to deliver the best performance at a price you can afford. 



The all-new TEROS 12 soil moisture sensor delivers an excellent price-to-performance ratio in a device that is easy to use and includes electrical conductivity.
  • Long-life soil moisture, temperature, and EC sensor
  • Increased volume of influence (1010 mL)
  • Robust, epoxy body for tough field conditions


The TEROS 21 matric potential sensor is incredibly easy to use and surprisingly affordable.
  • Full-range soil water potential sensor
  • Accurate. Easy to use. No recalibration.
  • Onboard temperature measurement


The new plug-and-play TEROS 32 tensiometer combines legendary precision engineering with the power of ZENTRA Cloud, giving you easier, faster, more accurate data in near-real time.
  • Field water potential + integrated temperature sensor
  • Direct measurement with no need for calibration
  • Year-round operation when installed deeper than 30 cm
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A revolutionary new method for soil particle analysis. Automated, simple, and fast—with much less human error than traditional methods.
  • Automated Soil Particle Size Analysis
  • Lower measurement duration of 2.5h
  • Estimated error: an incredible +/- 0.5%


Automated calculation of high-resolution soil moisture release curves and unsaturated hydraulic conductivity—in just days, instead of months.
  • Soil moisture release curves in days, not months
  • Curves with hundreds of points
  • Precise and robust. Easy to handle and flexible.


The WP4C measures water potential by determining the relative humidity of the air above a sample in a sealed chamber (conforms to ASTM D6836).
  • Soil water potential lab instrument with fast equilibration
  • Durable and easy to clean
  • Easy to calibrate with saturated salt solutions

Understand the big picture with better data. Our powerful turnkey system of plug-and-play sensors and real-time data visualization tools provide a symphony of information that can be used to understand and predict a soil’s behavior over time. 

“​​For a soil instrument, it makes a lot more sense to go to people that have more expertise about soil science and soil measurements than we ever would at JPL.

 - Dr. Michael Hecht, NASA JPL

We believe in education

We're scientists. The quest for knowledge is in our blood. We've spent decades learning the best way to measure pretty much everything, so you can access a wealth of information.

Soil Moisture 101: Need-to-Know Basics

Soil moisture is more than just knowing the amount of water in soil. Learn basic principles you need to know before deciding how to measure it.
Webinars30 min watch

Soil Moisture 202: Choosing The Right Water Potential Sensor

In this 20-minute webinar, METER research scientist Leo Rivera discusses how to choose the right field water potential sensor for your application.
Webinars37 min watch

Soil Moisture 302: Hydraulic Conductivity—Which Instrument is Right for You?

Leo Rivera, research scientist at METER, teaches which situations require saturated or unsaturated hydraulic conductivity and the pros and cons of common methods.
Webinars47 min watch

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