What information does a flow sensor specifically provide during harvest?

The flow sensor during harvest is instrumental in delivering real-time data regarding the rate of grain flow. This information is vital for understanding how quickly grain is being harvested and can help in adjusting the harvesting equipment's performance for optimal efficiency. The rate of grain flow is measured in units such as bushels per minute, which allows operators to monitor the effectiveness of the harvesting process and make informed decisions about timing and machinery adjustments.

This data helps in managing harvest operations more effectively, ensuring that the combine harvester maintains an optimal speed relative to the volume of grain being harvested to prevent any bottlenecks or overloads. The other options, while relevant in the context of harvesting, do not specifically pertain to the role of the flow sensor. For instance, weight measurement and moisture percentage require different sensors and instruments, while speed detection of the combine harvester does not relate directly to the grain flow measurement.