Anemometers are devices used to measure wind speed and wind pressure. The wind can have a significant impact on crops in various ways. It can affect the growth and balance of plant hormones, and have a physiological impact, such as accelerating the
drying of plants, and a mechanical impact, such as causing damage to shoots, uprooting plants, and causing soil erosion. The use of anemometers in permaculture can greatly improve the efficiency and sustainability of agricultural systems by gathering data and monitoring meteorological factors that affect crop growth. With this data, farmers can take measures to improve production efficiency, control pests and diseases, and minimise damage caused by strong winds.

Anemometers typically consist of a set of cups or a vane that rotates in response to the wind and a sensor that measures the rotational speed of the cups or vane, which is then converted into wind speed. Some anemometers also measure wind direction and wind pressure. In addition, the data collected by anemometers can be used to predict future wind speeds and make more accurate planting and harvesting schedules. Anemometers also play a vital role in the early detection of extreme weather
conditions, such as tornadoes or hurricanes, as they can detect changes in wind speed and wind pressure that may indicate the presence of these conditions.

In conclusion, the use of these tools in permaculture is of extreme value. Analysing  data such as soil moisture and temperature, and wind and other weather conditions, allows for more efficient use of water and electricity, helps minimise damage to crops,
and greatly improves the efficiency and sustainability of agricultural systems.