Differential pressure sensor

This device allows studying the water needs of a plant based on the influence of environmental parameters. Measurement principle: 1. Roots take up water. 2. Water circulates in the stem vessels. 3. Most of the water is released into the atmosphere through transpiration. 4. The volume of water decreases in the reservoir. 5. In the connecting tube, the volume of air increases, thus the air pressure decreases. 6. The relative pressure sensor measures pressure variations: the greater the water flow, the lower the pressure. Works with an ExAO console Tooxy®, Foxy®, or AirNeXT®.