TST 507 Tire Pressure Monitoring System with 2 Cap Sensors and Color Display for Metal/Rubber Valve Stems by Truck System Technologies, TPMS for RVs, Campers and Trailers…

Hopefully will never have to tow my trailer without this again. First trip was 700 miles. Such a great peace of mind to see real-time pressures at all times. Set up was a little tricky at first. Realized a hadn’t set alarms for each wheel. Once I figured that out with a YouTube video, all was good. Highly recommend this product for people who tow trailers.

I pull a 36 foot 5th wheel RV and get constant readings from the sensors and amplifier that give a great feeling of confidence. Ive spent years wondering how my RV tires were doing as I traveled. The TST system was easy to install and has a bright display that updates quickly...

got this set of 4 for our fifth wheel. easy to set up, did not need the extension kit and it is very accurate. on a trip the left side was 10 degrees higher than the right, then realized that was the side of full sun.

Sure, its expensive - but its less than your deductible! And there are much cheaper systems out there, but I 100% trust this TPMS! I love that it runs on a batter and doesnt need to be plugged in all of the time, and the brightness of the display. But what I love most, is the reassurance that if anything were to go wrong towing our travel trailer, this will notify me right away! I absolutely, 100% recommend this TPMS!

Installed the 8 cap sensors on our 45’ diesel pusher, instructions were straight forward and easy to follow. Programming the sensors to the individual tires, and setting the alert parameters was also straightforward. The cap sensors installed easily on all but the inner dual tire on the drive axle - but I think the issue is more a function of the valve extender than the sensor. Put the repeater in the chassis battery Bay, behind the tag axel - no problem monitoring the 8 sensors on the coach and the 4 on the towed car. Highly recommend, great peace of mind knowing tire pressures and temperatures.

I bought this to use on the rear duals of my Motorhomes. The first problem appears as I was following the written procedure for assigning sensors to the wheel position. 3 of the 4 linked just fine but the 4th didn’t so I returned the whole kit and ordered a replacement. In that kit none of the sensors would assign to a wheel position UNTIL I placed the sensor at the lower left corner of the display AND held it there until I had pressed the button called for in the manual. Maybe I’m stupid, or maybe the manual could be clearer. Im sticking to the latter and the vendor could have saved a return by clarifying the instructions. The second problem is that the suction cup that is supposed to allow mounting the display on the windshield doesn’t, but it works barely okay as a brace to hold upright when sitting on the dash. Finally, with all the tires set to 50 psi with a digital gauge, the two left tires show as 50 psi on the display while both right side tires show as 49 psi. I can live with that. I might get them all to match by using the remote antenna. That’s too much work to install for a 1 psi difference. Other than those things it work fine reporting temperature and pressure while moving.

When you are pulling a expense travel trailer you need to know the tire pressure.

I received my unit today with 8 cap sensors. I dont have my RV yet, as im waiting for the snow to melt up here in Vermont to pick it up from winter storage. I was able to quickly set the default settings and the high/low air pressure for each axle. The sensors themselves paired very easily (have a non black sharpie on hand to mark them). The cap sensors installed on my truck in seconds and locked on fine with the hex nut. Not sure it will deter many people, but i used them. The unit synced up with the sensors in about 90 seconds. Three of them within 30 seconds, the last one took about another minute. I appreciate the many different mounting options/solutions, that is nice. I dont know what ill need the repeater. My rig is 30, but I received feedback in another forum that they work well without it. Guess ill find out in another 6 weeks, but am very happy so far.

Screen can be difficult to read in sunlight

I bought this to monitor the tires on a 38 5th wheel while traveling this summer. Easy, if a bit tedious, to install, but easy enuff if the instructions are followed. Setting the alarms is a learning experience, but again, it just takes a little trial and error. I am just using them on the four trailer tires. While they do work as soon as they are recognized, when turning the system on, I had to drive a ways to get a couple to turn on occasionally. One, in particular, would take a half hour or more or not come on at all til the next restart, then work fine??? Seems to match my two tire gauges pretty well, but the temps are way off compared to an infra red temp gun. Granted, the gun is reading the case and the gauge is reading the air so that may explain the difference. I always hit the tires and hubs when I stop, so its not a concern. Also starting in 60 degrees and then starting in the teens is interesting. Doesnt take long to learn about what they should start at. Ive only got bout 3k mis on them, but all in all, a worthwhile addition to help us stay a little safer. Up date...Well it seemed like a good idea. And it worked for about 3k miles. Then I shut it of while I was working for the summer in the Dakotas. When it was time to head home to AZ, turned it back on and nothing. I replaced the two year batts and was able to reprogram the four sensors. Went thru the whole procedure as per the book, hit back twice and waited for them show up. Nothing. maybe after I get rolling the next day. Nothing. Took them of and reprogrammed them twice more that night. You guessed it. So the 1800mi trip will be without the several hundred dollar paper weight working. Thats money Ill never see again. Maybe theyll work for you, they have for others, but Id think twice before buying. Last update...While I figured it was an effort in futility, I thought I would try them once more since Im getting ready to travel a couple thousand miles to my summer job shortly. Picked a couple of transmitters out and went through the process. It accepted and showed the ID #s, hit back twice and waited for the display to start reading. And waited. After checking a few times that evening and it still not reading the next day, Ive just resigned myself to being out the $300 odd for this and put it in a box.