How many types of wind vanes are there?

There are several types of wind vanes, but they can primarily be categorized into two main types: traditional wind vanes, which are typically made of metal or plastic and use a rotating arrow or figure to indicate wind direction, and electronic wind vanes, which utilize sensors to provide digital readings. Traditional wind vanes are commonly used in weather stations and on rooftops, while electronic versions are often found in advanced meteorological instruments and marine applications. Each type serves the same fundamental purpose but differs in design and technology.