... , stable performance, easy to carry FunctionQDF -6 Digital anemometer (also known as QDF-6 hot ball ... of low air velocity measurements. CharacteridticQDF -6 Digital anemometer is a kind of portable instrument Compact ... volume, stable performance, easy to carry ApplicationQDF -6 Digital anemometer is widely used in indoor heating, indoor ventilation ... .01m/sl Dimension: 190(L)*90(W)*40(H)mm Weight: 380g