We have had the pressure pro system on both our Montana's for nearly 8 years. research some post on the damage a blown tire can do to your rig vs the cost of a TMPS. The unit has warned us several times over the years on a tire loosing pressure and prevented damage. We are long timers and put many highway miles a year on the 5th wheel. NO they can not warn against a blow out which is a sudden and catastrophic failure but a undetected loss of pressure will give the same results. IMO worth the cost any quality brand.