I have been convinced that TireMinder A1A is the best TPMS for RV. I bought this for our travel trailer for piece of mind while travelling. I have not needed to use the provided signal booster with my Chevy 2500HD and 26' travel trailer. My unit reads out in the exact pressure and temperature of each tire. Audible alarms are great as well as providing visual queues. Warnings are set for over pressure limits and under pressure limits so that an alarm sounds if a tire is in trouble. The sensors are flow through so that air may be added to the tire without removing the sensor. Battery time is great and auto-powers down after a period of inactivity. Any other good options when it comes to TPMS?