I also have the eeXRV system and like it. Sometimes I leave the tire monitors on and sometimes take them off depending how long the coach is stored. My last trip one tire was not recording so thats telling me it is time to change out the batteries. I replaced them 2 years ago.
As for pressure, this is how I do mine. According to my 4 wheel corner weight, the tire sheet says 85 in front and 80 in rear. I add 5psi to make it 90 front and 85 rear. I set my monitor to minimum tire pressure alarm to 85 front and 80 rear.
This way when my alarm goes off, it is letting me know I’m at the minimum tire pressure for that tire/corner. It is time to pressure it up to my 5 psi safety factor to be safe. I always run my tires a few pounds above the minimum cold pressure scale to NEVER run my tires lower than required. This is from a tire engineer Roger Marble who is on these forums. Look up his blog, there is a ton of info that explains how and why steps are done this way. Good Luck.........
2003 Pace Arrow 34W, F-53 V-10 22,000#, 5-Star, Avg 7.7 MPG, ScanGauge II
WiFiRanger Elite Pack, WeBoost 4G-X, Voltage Booster,.Progressive Industries EMS
Water Softener, Safe-T-Plus, Koni, Centramatic Balancers, CHF, Rear Trac Bar, EEZ TPMS