I highly recommend a TPMS, it’s saved me before I had a blowout before. I have the EEZRV one and really like it. The TST and EEZRV are commonly recommended brands. I will not have a trailer without one. It’s nice to be able to just look at the monitor instead of manually checking each tire. I still do a visual check at every fuel stop. I also took the security covers off. It’s just like removing a valve stem cover to add air or to manually check at home when preparing for a trip.
I have low and high pressure thresholds set to alert for under or over pressure. I drive a lot in FL and the southeast where it’s hot. I start around 110 psi and they will get up to around 120 psi on a hot day. Also watch the temperature of the tire. A rising temp should warrant a check of the tire and could be a sign of a possible problem. Low pressure often causes the temperature go rise until the tire finally fails.