Soil laboratory measurements of the future



Conventional particle-size analysis operation takes a lot of time. And because the procedure is manual, it’s prone to errors—which leads to wasted effort. PARIO automates the ISP method, saving you hours of labor.



As soil scientists who have made hundreds of moisture release curves, we wanted an instrument that delivered greater accuracy.

Still using partial curves?

If you’re spending months to produce only a partial soil characteristic curve—archaic methods are holding you back. Create a full curve with hundreds of points in just a few days.

Trusted Water Potential Based on First Principles

As world experts in water potential and soil suction, it wasn’t enough to engineer an instrument that delivered consistent accuracy.


The KSAT is the only automated setup for making saturated hydraulic conductivity measurements in the lab. In its simplest form, it’s an instrument that uses both the falling and constant head methods on a soil core. Best of all, it’s completely integrated, so you’re also assured of software-controlled engineering that’s fully tested.

LAB vs. Field Instruments—why you should use both

Lab systems are highly accurate due to controlled conditions, but lab measurements don’t take into account site variability that might affect soil hydrology.

Compare water potential instrument ranges

In the real world, there is an assortment of instruments that measure water potential. Each has a well-defined range.

Moisture release curves in the dry region don't get any easier.

If you want to know something about your soil—how it behaves, how much clay there is, or if there are crystalline structures that may expand when water is present, the VSA is your simplest and most accurate option.

The Researcher's complete guide to water potential

Everything you need to know about measuring water potential

Hydraulic Conductivity

Why you need it. How to measure it. Which method is right for you?