Anything out there to get wind direction,some hand held.

[Big Matt]

Primos wind checker is a app u can use if u have a smart phone.

[blong]

Primos wind checker is a app u can use if u have a smart phone.

[rubydog]

They sell powder (puff bottles) wind detectors at all major outdoor stores.
I think it's corn starch.

This^^^^ Odorless..

[buzzcut]

I tie a foot long piece of dental floss or sewing thread on a nearby branch.

[Ron]

Use a feather on a piece of thread.