Have the TST507 tpms system. when traveling, not all the sensors show up. I have a 30ft 5er. do I need to install a repeater, and are there different brands
I also have the 507 with a 33 ft. 5th wheel. I installed the repeater because mine would lose all the sensors at times particularly when in an urban area. The repeater solved that problem. If you aren't getting the same signal all the time I would think it is something else. You might try changing the sensors to a different position and see I that makes a change.