Flow4 sap flow logger from Dynamax press release

Flow4 Sap Flow Logger - Irrigation Control from Dynamax Inc (281-564-5100), is a stand-alone water balance measurement system for irrigation automation based on plant transpiration. Four Dynagage sap flow sensors read crop water consumption. These measurements are compared to rainfall, soil moisture and irrigation water supplied. The water balance or water deficit then determines the amount of water to be replenished at a predetermined interval.  The system informs the grower to manually apply a specific volume for the area intended, or the Flow4 may automatically open irrigation valves until the water balance is replenished.

The internal logger collects the sap flow rates, rainfall, and irrigation history for retrieval by PC or remote radio link.  Flow4 makes water-efficient crop management easy and precise.