I've used Pressure Pro for several years and been very Happy with the system. There is one disadvantage to it though. When the batteries go bad in the sensors, they are not replaceable in the field. You must exchange them for new ones. the new ones are priced at about 50% of the new price. The batteries are suppose to last about five years. When I'm parked for any lenght of time I remove them and store them in a tackle box thus extending the life of the batteries. Each sensor is stored in it's own puca of the tackle box so I know where to reinstall it when I travel again. Works great and gives me great piece of mind.
I figured the cost of the system would be less than the cost of new tire and repairing the damage to the motorhome caused by a blow-out. Money well spent
Scotty Haskell 1997 Bounder 34J