bullydogs1 wrote:
.there is one called Tire Minder on sale that is priced reasonably but it is stating for brass/steel rims...
Tireminder makes two sensors - one for brass and steel stems and one for aluminum like the newer cars have with built in TPMS. It has to do with electrolysis and corrosion. The standard sensors are brass threads and will corrode on an aluminum stem, so they make an all plastic sensor for aluminum stems.
We have the Tireminder TM66 and I gave one to my daughter. So far so good. I've had 1 bad sensor out of 12 (8 MH + 4 toad), and another that I broke the battery compartment. They send you batteries every year and they need them every year.