A sensitive cup-type anemometer was developed which is mechanically and electrically simple. The characteristics include a starting speed of 6 cm sec−1, distance constant (63%) of 90 cm, and a linear response. Abstract A sensitive cup-type anemometer was developed which is mechanically and electrically simple. The characteristics include a starting speed of 6 cm sec−1, distance constant (63%) of 90 cm, and a linear response.