The gonioanemometer is a wind direction sensor. In the C100D and C500D models the measuring system is a Potentiometer, in the C500D models it is digital encoder. In The C600D models the processor calculates the trigonometric Progressive average on a programmable acquisitions number, This leaves out the inevitable displacement wave of the vane Above all at low wind speeds, This sensor also accepts 4-20 mA Signal from a compass, in order to obtain a continuous Updated measurement corresponding to the sensor position, Particularly useful on vehicles. In the C100D and C500D the output corresponds to The instantaneous value. In the heated versions, a thermostat controls a heater that Keeps the vane moving effectively in case of freezing. The models C500D and C600D have the most common Analog outputs
