Don’t estimate ET. Measure it.

Knowing exactly how much water a canopy loses during the day is vital to many applications. From irrigation planning to quantifying hydrological changes over time to modeling an ecosystem’s energy balance, direct measurements of evapotranspiration can give you the information you need to make the right decisions at the right time.

The ATMOS 51 VBR Actual ET Sensor takes your data beyond reference evapotranspiration values, using a variance Bowen ratio technique to simplify water and energy balance measurements in the field. Now, you can use actual ET data to accurately measure plant water use throughout the day, identify water limitations, and detect plant stress signals earlier.