I have a habit of not taking care of my toys, so I go buy the cheapest ones I can find since I know they are going to be broken within a couple years or far less :)
Surprisingly, I picked up a no name brand wired probe thermo with timer from academy. it's been used literally hundreds of times and still works great. boiling water test is always right on too. It set me back a whole $9 on clearance.
Modded Brinkmann Gourmet. Basic UDS. Rescued 22.5" OTS. SJS Mini-WSM. Stubbs. B&B Oak Lump.
Cannondale 2009 F8 (for burning off all the great BBQ)