The Walker 2050MK2 uses a Combined Anemometer Cup & Vane Direction Sensor, the P296. This gives high accuracy in a robust compact package!
The Sensor connects directly to a standard Walker DIN 144 wind speed & direction indicator, the P249, which gives digital displays of relative wind speed & direction. Wind direction is also displayed on a simulated analogue display by 72 LEDs.
True wind systems are available by using this sensor with the Walker P1066 True Wind Interface Unit.