TST 507 Tire Pressure Monitoring System, 2 Flow Thru Sensors for Metal Valve Stems by Truck System Technologies, TPMS for Caravans, Motorhomes and campervans

Same price as everywhere else. Work great. New design.

I bought the cap tire pressure sensors for my trailer, to use with a complete TST 507 system I bought for my truck. They worked well on a 3-week trip except that, twice, a sensor on the trailer (different sensor each time) suddenly set off an overtemp alarm - abruptly reading over 300 degrees F. This was most disconcerting, and the first one caused me to make an emergency stop on an 80 mph freeway (I was doing 65) to check my tires with an infrared thermometer. Turned out both times to be a false alarm. I ended up not stopping for the second one - just reset the monitor. A couple of other times the monitor lost the trailer sensors. Again, switching it off and on reset the system. Two possible contributing factors: glitches seemed to happen during high ambient temperatures - above 90 F. I didnt install the signal repeater (for the trailer) that came with the system, because the system seemed to work fine without it.

worked as described. Like the replaceable battery so not throwing away sensor anymore like the pressure pro system sensors. already saved a tire on my tow car

Package arrived as promised. Package not sealed and did not include user manual. 4 Sensors, two tools and one little plastic package with tiny screws, o ring seals.

Do not buy the color screen addition of this system as the tire pressure read out us in dark blue and almost impossible to see in daylight driving.

Work fine.

This is a great system, it was easy to install and program. I wish we would have bought it when we got our RV. Its not only is a sense of security knowing the the tire pressure and temperature is monitored but also before each trip we are not checking the tires the way we used to. Highly recommend the system. Also the service from the company is the best, I had a few questions on a Saturday and they were available.

Quality product.

Tough to program although TST has detailed video on YouTube.

I already have the flow through sensors on my RV trailer and needed them for my truck. They do a great job. Its just harder when you need to add air as the sensors must be taken off to add air to the tires.