I have the 2500 and have got along just fine. But I wish I would have stepped up to the 3500 so I would have humidity.
The 2500 has altitude and baro pressure and you need those.
The 3000 has neither.... so you need to do the 2500 or better yet the 3500 as ss 7mm stated above.
Here is their comparison chart link.
Kestrel Meters Comparison Chart