The core element of the velocity meter HM 160.64 is an impeller that is rotated by the flow. The speed of the impeller is proportional to the flow velocity. The flow velocity is read directly from the digital display.
The impeller tube can be moved vertically. A scale indicates the corresponding vertical position of the measurement.
HM 160.64 is mounted on a carrier. The carrier can be placed upon and fixed to any position of the experimental section.