Soil Water Potential Sensor – TEROS-21

The TEROS 21 water potential sensor is remarkably easy to use, needs no maintenance and offers accuracy suited to most applications. It gives a more complete picture of soil moisture than water content alone: a water content sensor shows only the percentage of water in the soil, while adding the TEROS 21 tells you whether that water is actually available to plants and where it is moving.

Brochure (PDF)