Good Morning Sebastian,
Good work yesterday. In speaking with some of my colleagues, we decided that the clock theme may be a little outdated. We like #5 for a number of reasons: we like the more modern look of the font, as well as the "sound waves" that emphasize the "alert" portion of what we want to get through to our audience. Our products are also wireless, so the sound waves also imply that characteristic. Any variations on that theme would be welcome options (perhaps other modern ways/fonts of projecting "alert" and "wireless"). One of my colleagues pointed out that the "r" in #5 is a little difficult to read, so perhaps you could choose a font that is a little more defined.
I have also been told that blue and red are probably going to be the colors we end up choosing. The particular color of blue that we currently use is PMS 301. I don't know what that means, but if you can make the blue PMS 301, that would be great.
I was hoping for some other designers' ideas by this morning, but maybe I'm being unrealistic. Either way, you have some good ideas, and we are pleased with the contest so far. I'll look for your revisions throughout the day, and provide more feedback.