Weather Meter Wind Direction Sensor RJ11 Interface Wind Direction Indicator for MeasuringMain Purpose: This wind direction measuring sensor is used to connect to meteorological station, suitable for WH2081 and more model. Easy Connection: The wind direction sensor can be directly connected to the display screen through a line (RJ11 interface required) or connected to the wireless sensor on the meteorological station for . Passive Component: All sensors in the wind vane measuring instrument are passive components. This means you need a voltage source to measure anything with them. Item Type: Weather Meter Wind Direction Sensor Material: ABS Connection Interface: RJ11 £21.89Joom UKDelivery: to United Kingdom ReportBuy!