some great ideas, general consensus seems to be an aftermarket system rather than depend on the dodge system
we travel every year to the east coast of Canada, short but very steep hills and pretty rough roads, speeds are generally less then 60kmh on them, we did over 7000 km last trip
trailer tire pressure is kept at 50 psi, trailer weight is around 3500
im sure that the two ruined tires went flat without my knowledge possibly from blownout tirevalves after hitting a pothole(one tireshop's suggestion), the tires were in good shape before, of course they were shredded after driving flat for a while
I actually do a complete "circle check" at every fuel stop including tire pressures so the tire failures must have been impact related, brakes and bearings are fine
so a tpms is going on before next years trip. I will also be installing better quality valves, the dodge Dakota has really top quality all metal valves, the trailer has the typical rubber tireshop freebies