DOES IT HAVE A FLOW METRE?

No. During the design of the STA logger, we considered this component but decided not to include it for the following reasons: 1. Our research and experience indicated that it is more of an agricultural need to know herbicide application rates for a given area of land, and that the primary information required for the conservation and natural resource management sectors is the location and type of weed. 2. It would add significant cost to the price of the unit for very little value. 3. It would add significant complexity to the installation and calibration of the unit. We have post-processing work flows that can help estimate the herbicide application rates for a project if they are important to report (not included in the STA logger package).