An anemometer is a device used to measure and determine the speed or velocity of the wind. It is a common instrument in meteorology, as well as in various applications such as weather monitoring, aviation, environmental science, and engineering. There are several types of anemometers, each with its own way of measuring wind speed. But we will only discuss two of them here: the vane anemometer and cup anemometer. Understanding the difference between a vane anemometer and a cup anemometer can choose the right wind speed measurement device.