Our anemometers are robustly constructed using weather resisting plastics, anodised aluminium and stainless steels enabling them to withstand continuous exposure to the weather including marine environments.
They all share the same basic construction and use the same R30 series 3-cup Rotors, different internal modules/components are used to provide different output signals. The use of a precision ball-race mounted shaft ensures the essential low threshold speed and good repeatability.
In operation, the wind causes the rotor to rotate at a speed proportional to the wind speed. This rotation is sensed in our optoelectronic anemometers using a slotted disk and an optical beam. In the case of the switching anemometer the rotation is sensed using a balanced system of magnets and a reed-switch.
