I used the Nikon Black 4K for a few months up here in the PNW in all kinds of shitty weather. My shooting partner bought one. It is a 1,600 yard all day everyday LRF in some pretty gray, drizzly and dank conditions. It won't penetrate fog banks, but what does? The laser seems to be vertically oriented. It picks up trees and poles very well, while thin horozontal targets are harder.
All that being said, when it cam time for me to upgrade, I went with the Leupold RX 2800. It is all the Nikon 4K is and then some. I can reliably range to 2,400 yards in anything resembling decent conditions. I ranged individual cows in an open field at over 1600 yards with no issues.