Ron3rd, Thanks for the information. I was thinking about a tpms for tht TT but not looking forward to having to take all the tires off and so on. If the experience of folks is that the externals are a quality product I will probably pick up a set for the TT. It sounds as though they produce two readings ....pressure and temperature. I don't want to hijack this thread but have some other questions and so will post a new one for those.
Just recieved and installed my replacement Flow Thru system for my old 510 system. Like everything except fo the fact that the Flow thrus are alittle longer and are real close to protruding beyond the tire, so it you really got up against a real high curb it could be catastrophic. Also the theft security is a small set screw with allen wrench. Most real crooks would have a tool to fit these. Unlike the old system that you needed a speacial wrench.
But I really like the ability to adjust pressure without removing sensor.
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