Anemometer

The Hygro-Anemometer measures the temperature, the humidity, the dew point, wet bulb temperature and the air volume. The Hygro-Anemometer is ideal for heating, ventilation, and air-conditioning engineers or for sailors to measure the wind speed in a sailing tour. By From Mecoinst https://www.mecoinst.com/whats-new/meco-new-product s.aspx?id=24