Newbie with a WS-2315 and some questions (pic)

Cautiously optimistic!

It was COLD last night/this morning. The temps last night were in the teens/double digits, 4.6F at 5:45AM. But the station worked fine! No problems when it dipped under 25F. I’m going to keep an eye on it and keep you posted. But for now, so far, so good. (fingers crossed) I’m guessing the orginal outdoor thermo/hygo I had was bad.