Cumulus Support

I'm not sure what to put in for the altitude setting.

Barometer can be adjusted so that doesn't matter. I don't think the altitude of the rain sensor matters.

However, my wind instrument is MUCH higher that the Temp and Humidity sensor.

Which height should I use, or should I average the two?

My though was to use the wind instrument height because that is the most height critical in my mind.

Ken
===

Your local height above sea level plus the height above ground of the barometric sensor.
If you are uncertain about your local altitude you can install Google earth, navigate to your location and it will tell you.
You can also use a GPS or altitude app on a smartphone if you have one.

--Kurt

The barometer is the only thing I can think of that is sea-level corrected. So I would definitely use the height of the barometer (which is usually in the console) above sea level.

I used a Garmin GPS to find it, but Google Earth's ground elevation + barometer's height above ground was also spot on when I double checked.