Hi Greg, I have 2 of them AccuRite ones now. The first one I got didn't seem to work for some reason and we had near by lightning, close enough that it should have picked it up. So, like others, figured it was a loss and tossed it in the pile of "Whatever". Pulled it out one day because of storms and was working like a charm. So I bought another one. And yes, I read that it contained that IC as well. I'm hoping to find others that wrote some software for it as a unit by itself since there are 3 types of these cpb units out here now, someone has had to have done their own software interface for it by now. I want to be able to run it as a single device with some software. I did come across the others you listed, but pricing is a bit high... thanks for the info !!