My Geovid HD-B 3000 has been spot on to temps in the low 20’s.
I’ve got an original Sig Kilo 2000 that’s still rockin’. It’s not fussy in the least.
I had a Sig Kilo 2400 ABS that I tested rather thoroughly this summer. It was fantastic. I let the Kilo 2400 ABS go in favor of the new Geovid—weighing the convergence of two instruments rather highly (bino/LRF). I gave nothing up, with the possible exception of ballistics engine features. All I really miss is a 10 MPH wind value, but that really neither here nor there. The new Geovids range fast and accurately and the optics are superb.