Want to develop an appreciation for Gore-Tex? All you need is five minutes in a rubber raincoat. But how do you know whether the North Face knock-off you've just purchased in China for a ridiculously low price is Gore-Tex or rubber? If you're a Decagon researcher, you dash back to your hotel room and clamp a porometer onto the fabric.
Decagon's porometer was designed to measure stomatal conductance in leaves. It's typically used by canopy researchers to relate stomatal resistance to canopy attributes like water use, water balance, and uptake rates of herbicides, ozone, and pollutants. It's small, accurate, and perfectly easy to use-you just grab, clamp, and get the reading.