My WeatherPro has the wind sensor on the top of the forward awning support, near the distal end. With the awning fully extended you may be able to see it from the front. A ladder will likely be needed to inspect it. I have heard that some have sensors on the RV roof.
By the way, my awning has a tendency to automatically retract when temperatures are high and sun is shining on the sensor - exactly when the awning is most useful. With a flat, 2-inch square of doubled aluminum foil stuck to the top of the sensor with a piece of doubled-over cellophane tape, it is better, but still will retract needlessly, but less often.
'09 Fleetwood Southwind 32VS
Victoria, BC Canada