All the Mavericks are pretty good, the probes seem to be getting cheaper as of late, so buy an extra.
The Mavericks pretty basically are about the number of sensing probes.
This is the maverick site, you can check 'em out. then shop the best price or from a favored vendor. I know that Amazin, on of our site providers listed in the above sponsor's section did have a HUGE discount going. You might check them also.
I just bought my nephew the new ET-735, which uses a smart phone and has 4 probes, 2 come with it and with purchasing 2 more probes you get 4 at once. He's new to smoking and it helps him, plus it has to do with a silly telephone so it cool to show to his buddies....LOL