Best thermometer?

[Black]

srf1957 wrote:
If it is all the same building get indoor/ outdoor. With 2 external and put 1 in basement
and the other in apartment. that way can check from your chair.

amazon
I have old Oregon Scientific that can have 3 external remotes on different channels.

Good stuff everyone, thanks. Yes, it's the same building..... will take some time and research the recs, but am I dreaming to think there's a chance one of these could broadcast to my home two doors down?