What is the purpose of wind sensors in an irrigation controller?

• A. To detect soil erosion
• B. To measure air temperature
• C. To shut down the system during high wind periods
• D. To track water pressure changes

Answer: (C)

Wind sensors in an irrigation controller play a crucial role in enhancing water efficiency and preventing unnecessary water use. Their primary purpose is to monitor wind conditions and shut down the irrigation system during high wind periods. When strong winds are present, water from irrigation systems can be blown away from the intended target areas, leading to ineffective watering and potential waste of water resources. By deactivating the system during these windy conditions, wind sensors ensure that water is only applied when conditions are conducive to proper irrigation, maximizing the effectiveness of each watering session.

Other options, such as detecting soil erosion, measuring air temperature, or tracking water pressure changes, do not align with the primary functionality of wind sensors. Those functions are typically managed by different types of sensors or systems that serve distinct purposes in landscape irrigation and management.