Sisco handheld anemometer is a portable device used to measure wind speed. It typically consists of a small, circular device with three or four cups or vanes attached to a central spindle. As the wind blows, it rotates the cups or vanes, which are connected to a mechanical or electronic mechanism that measures the rotational speed. This information can then be used to calculate the wind speed. Handheld anemometers are often used in weather stations to measure wind speed as part of the overall weather data collection. Sisco digital anemometer for weather-station is also usedd in environmental protection, airports, agriculture and forestry, hydrology, military, storage, scientific research, etc.