Just got back from my first trip towing our 30ft TT with the new Pressure Pro system, and gotta say that I'm totally sold. My Sunnybrook came with 'C' range tires that were within 150lbs of max load. I always worried about a blowout, which I would not be able to see while towing. It was either new tires, or a pressure monitoring system. I'm glad I chose the latter, as I now have a great indicator of any tire problems before they tear up the undercarrage. Simple install, as the sensors just screw onto the valve stems. Makes it pretty handy to move from one trailer to another.