Tires and TPMS

I have Sailun S637s and the Tireminder system. I run at 105 psi. I set the baseline pressure, all you need to set, at 105 psi. It automatically sets the upper and lower psi and high temp alert points. It alerts for fast pressure loss, slower pressure loss, if the tire is 15% under your baseline pressure, 20% over your baseline pressure, or if the temperature is above 167 degrees. You just set the baseline temperature in my model, which is the A1A. Good luck.