I have a tst507 on the truck and trailer. The sensors can be a bit of a challenge to get on and off the dually wheel(OP didn't specify). The flow throughs are too long for the truck wheel. I have the flow through on the trailer, although 1 now doesn't flow through very well~7yrs old. When I changed tires I ordered internal sensors, they were on back order forever and I gave up. I'd highly recommend that way on a drw although they are pretty spendy in total.
I like seeing the tire temps, I actually shifted some weight around since one front tire always ran ~10* hotter. I haven't had a blow out or flat with the system, just reminders to air back up.
