Best trailer TPMS systems?

[Dewster]

Whats the best trailer TPMS system? I have seen TST, tire tracker and tire-protector brands. Anyone have experience with any of them?

[Dewster]

Heres one Im looking at :

http://www.tireprotectorusa.com/

[TPMS Guru]

I've personally used the TST system on my trailer and I have no complaints. I haven't used any of the other products though.