Re: kestrel wind meter 3500 vs 4000
I have used a 4000 for years but the 3500 provides the same information. The only difference is the ability to download info and view graphs over a set time. If you plan on keeping and graphing data go with the 4000. If you just want to measure conditions for a specific time, go with a 3500. When I purchased mine the selection was rather limited. Now they have a number of different options.