I'm glad to see a fresh thread on this...to see what the opinions are of the latest and greatest.
I bought the TST 507 system a couple years ago. I see now that they have updated the display, but it looks to be basically the same I think.
Anyway, I've liked the TST system ok I guess....
I bought the flow through sensors, but now I think the cap sensors are probably better. Flow through never really worked that well. At first I had them installed on rigid extenders. I had lots of problems I think all due to the extenders...not engaging the valve push rod well, or the pushrod being a bit too long damaging the little plastic numb in the sensor that pushes it... or maybe it was me overtightening...
Also had some premature battery leakage that ruined a couple, and a couple with bad or old o-rings that failed and let water in...
Anyway, I'm down to two of the original flow through and the rest have been replaced with caps.
Have had excellent customer service from TST
My only trial by fire....
had a tire come apart on me last year. started getting a thump and of course started closely monitoring the TPMS while I looked for a safe place to get off the road. Thump got progressively worse but no change in indication so I just slowed way way down and started for an exit as a safer place to pull off. Just as I hit the decel lane....BOOM....then, beep beep beep.
I don't blame the TPMS, since the tire failure was not likely one of the failure modes that the thing is intended to monitor.
Anyway, a thread over on the thor forum set me to thinking.... one of my biggest gripes with my system is the way the indicator scrolls through each tire. When there's an alarm you have to wait till it scrolls through all the tires to see if it's
a) the tire is flat so hit the shoulder NOW!
or b) the temp or pressure is just a nit above the high limit because I'm driving in the desert summer, and all I really need to do is to slow down and fins a SAFE place to pull over....
Wondering if there's a system out there that displays all the tires at the same time....
bar graph or something would be even better, so that at a glance you can see the tires relative to each other, movement or trends, etc...
Personally, I don't really car so much about the actual pressure number while I'm driving. Love it for my preflight check, but while I'm driving it's too easy to get caught up in the minutia of the digits.