Sig Kilos have been hit or miss for me. I had a "good" one, but I dropped it while on my horse, right onto a rock. No more worky.
Sig warranty dept couldn't repair it so they replaced it. The replacement absolutely sucked. It wouldn't read past about 500 yards, in good weather or if the target was reflective. I ended up buying another Kilo 2000 and it is "OK", at best. It'll read out to about 700 yards max and only if weather and terrain conditions are good. Even the slightest amount of fog has absolutely jacked all three of them all up.

The search continues.