I've got both the Dual Sense and the Dual probe They work pretty well. If I'm just cooking one piece of meat then I use the dual sense but like today with 2 butts in the smoker I used the dual probe for the meat and the dual sense on the grate stick through a piece of Hickory for smoker temp.
Biggest thing I don't like about the dual probe is you can't set the temp you want its set either by the meat type or by doneness level.
I expect my new Marverick ET#73 tomorrow. I went with that model based on all the glowing reviews. I anxious to get it and try it out this weekend. So Jam46 being a newbie myself I went with what seemed to be the more popular of the dual meat probes.
Actually, you can set any temp you want with the Polder dual probe. Just scroll through the pre-set meat types until "PGM" (program) comes up and you can set any temp you want on each probe individually.