Even factory direct style TPMS is only fairly accurate.
TPMS is just supposed to let you know when your tire is severely underinflated. It was a bad idea for manufacturers to put in systems that provide numeric displays instead of just an idiot light, giving people a false sense of security when the systems aren't designed for precision or accuracy.
Then again, they're no worse than the gauges we're talking about anyway. Oh well.
It's all relative since we can't even agree upon what tire pressure to use, it's just a good idea to get them the same on each side of the car. I have an old plastic gauge that I bought for my first car in the early 70's and it still reads very close to my latest gauges on my compressors and my digital gauge with 0.1psi resolution that I also have had for many years. Some dial gauges I have purchased that would go on an air pressure line seem to work well and read consistant with all the other better built gauges. Stick gauges that rely on a sticky rubber seal and spring seem the least accurate. In the end I use a pressure regulator on the air tank and inflate until the air stops flowing or run the 12 volt compressor about 1 psi or 2 above the desired pressure I want which compensates for the vibration and air flow in the hose. It all changes when the temperature drops and rises anyway - so you really want to know when you have a leak and if you are lower than you would like.
If they are too heavy they throw the tire out of balance. I didn't see any at 44psi in Amazon from that manufacturer only single ones and $6.95 shipping each? - looks like a trip to a car store is in order.
If they are too heavy they throw the tire out of balance. I didn't see any at 44psi in Amazon from that manufacturer only single ones and $6.95 shipping each? - looks like a trip to a car store is in order.
Yea, the 44's were hard to find, and a local store would be best for such a small item...
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