Originally Posted by dkrickbaum
I installed my TST-507 sensors this evening. Before doing so, inflated all 4 tires on my 5W to 80 psi and checked them with 2 gauges. When I turned the monitor on it read 75-76 psi on all 4 tires. Which do I believe?
I don't have a TPMS on our TT, so I can't say how dead accurately they display, but I've got four digital pressure gauges in assorted vehicles, one fairly expensive Moroso dial gauge, and a cheapo gauge/inflator in the garage. None of them read the same. They are all about two or three lbs. apart from each other. I wish I knew which one to believe!
There are a bunch here that have your system, and I'm sure someone will chime in for you.