How do you want to use it? Probe and cable? IR?
I just popped open both links, but haven't looked yet. All I really want is something that I can shut into my oven and be able to see what temp it is at. Nothing fancy really. But I feel that I need more than 572, which I've found a few of. Only because even though I set the oven for 550, I'm cooking pies in 4 minutes, and that seems hotter than 550 to me... Maybe not... But I've done 63% hydration Lehmann NY pies and have had them cook between 4-6 minutes. My first one cooks fastest, it got a little burnt, top and bottom, at 4 minutes flat.
Edit: Just wanted to add, my oven is from the 50's. My wife has always noted that it cooks "hot" but by how much we don't know. I try to cook my pizzas at full blast, so whatever that is, I don't know. Sadly, I have no oven window, so it is guess and check.