Anyone use a digital tire pressure guage that they know is really accurate? If so, what brand is it? I'm trying to make sure my TM tires are inflated properly, but I got different readings on three guages (63, 64 & 66 psi) and then even a different reading on my TPMS (62 psi). I'm trying to inflate tires to 65psi.
As long as they are all in the same ballpark, I wouldn't worry too much about it. The pressure in the tires is going to fluctuate that much just from temperature changes.
I would average the readings or maybe just go by the one that reads lowest.
Digital gauges are often not calibrated or do not keep their calibration. I notice that my Jeep tire sensors don't all agree. One reading on a gauge, dirfferent ones on all 4 tires. Same with the Dill internal sensors on my trailer tires.
Anyone use a digital tire pressure guage that they know is really accurate? If so, what brand is it? I'm trying to make sure my TM tires are inflated properly, but I got different readings on three guages (63, 64 & 66 psi) and then even a different reading on my TPMS (62 psi). I'm trying to inflate tires to 65psi.
Thx,
Most important is precision, which refers to getting the same reading each time. I'm not too worried if the measurement is off by even 4 or 5 because it's probably more important that all tires are at the same pressure.
Don't forget that as you start driving, the pressure will increase as the rolling resistance increases the air pressure. Loading your trailer unevenly will cause one tire to heat up and raise the pressure more.