Fog proof rangefinders?

[JohnB]

Do they exist? I'm sick of my Sig Kilo 1400 and it's utter helplessness when there is a bit of moisture in the air?

 

[hiker270]

I have owned Bushnell, Leupold and Leica rangefinders and have never had one fog up.

 

[blackpowder72]

I haven't found one that works in the fog . Leupold, Bushnell or Nikon