Is this wind vane sensor suitable for low wind speeds?
Hi, I’m considering this wind vane sensor for a project where the wind is usually around 0.1–0.5 m/s. That’s quite a bit lower than what I normally see in these applications, so I wanted to check if it can give useful readings at that level. I’m also looking at the RS485 version. What happens to the wind direction reading when the wind gets too low?
Hi, for your wind range, we don’t think this sensor would be a good fit. The wind speed accuracy is ±5% of full scale, or about ±2 m/s, so readings around 0.1–0.5 m/s would not be very accurate. When the wind is below the starting threshold, the sensor keeps the last wind direction value. If there was no wind when powered on, the direction is 0. The RS485 version supports Modbus RTU.