Tire pressure monitoring systems

We've used Pressure Pro for 9 years on both the motorhome and Jeep. Absolutely no problems and no replacements. We also check our tires manually. We got the system after a blow out on the Jeep and we didn't feel a thing as we were pulling it. We couldn't see anything wrong in the rear monitor which we check constantly while driving. Our indication was the dreaded 'pointing' by a passing motorist. We pulled over and we were pulling that Jeep on a bare rim and had extensivly damage. Had we had monitors we would have known as soon as it happened.