So I just got the halo X-ray800. Works amazing so far and was dead accurate. The only question I have is does anyone know how twilight/dawn mode works? Is it automatic or do I have to do something to enable it? I tried this when it started to get dark on the tree, and I couldn't see the numbers because they were displayed in black. So what I did was the true movement of the tree towards the sky at that time, and I could see it. He didn't come with any instructions, so I'm just wondering if there's something I'm missing.