Well, I didn't have such good luck with the TST system that I paid almost $600 for. I bought eight sensors for the coach and four for the toad. The 'repeater' antenna never worked.
At first things seemed to go OK then I had two sensors not register. I took them back to TST when they were in Quartzsite, AZ, at the big tent event. Of course the guy was nice and replaced the two bad sensors.
Every one of my tires except one lost air because of the TST sensors. I never used my air compressor more than when I had those sensors. I ended up giving the whole system to someone in Florida free just to get rid of it.
I would hope that the the newer version is better but I got sick and tired of worrying and filling up my tires. And it was frustrating that the antenna never would let me read the toad's tires.
Once I got rid of the system I just check my tires before every departure with no problems. I don't have to add air like before (maybe every 3 or 4 months I will add air to top off).
If I have a flat, I have a flat. I have road side assistance and insurance. After getting rid of the piece-of-junk TST, I sleep better. It's just my experience. Apparently, there are good systems out there, I just didn't get one of them.
I'm happy just checking my tires before I leave and 'eye-balling' them at rest stops. So far, so good.
Travel safe,
MM.