WL-145 WELLHISE HT91 ANEMOMETER is an instrument used to measure wind speed and other meteorological parameters. This anemometer is often used in meteorological stations, agricultural fields, construction projects, wind power plants and other similar applications. In addition to measuring wind speed, the HT91 model can also measure other weather conditions such as temperature, humidity and air pressure. These features enable the instrument to be used for weather monitoring and data collection in various fields.