Flow4-IS, Irrigation Scheduler, 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 retrieval by PC or remote radio link. Flow4 makes water-efficient crop management easy and precise.

Flow4-DL Data Logger is a stand alone water balance measurement system. Four Dynagage sap flow sensors are recorded with all sensor signals, sap flow, and the weighted average for four plants.

Optional sensors for rainfall, soil moisture or solar radiation are recorded at each logging interval. The Flow4-DL stores the irrigation and watering history for direct or remote retrieval. When a PC connects to the Flow4-DL, the detailed log of sensor results may be transferred to spreadsheet files for analysis.

Software to install and configure your Flow4 system is as easy as pointing and clicking on the icon for that function. Each plant-sensor has automatic diagnostics, with check marks to indicate all is well. Click on "setup" and the menu choices are clearly indicated graphically.

After setup is complete, the PC may be disconnected and Flow4 does the rest. By direct communication to FL4 in greenhouses and with remote radio MODEM, PC software displays plant sap flow rates, rain, total irrigation, and the water balance on graphs as well as bar charts. Separate menus adjust the crop-field description, logger settings, and show overall system status. No other system has these unique features.