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

Work fine.

This is the upgrade design. No tools to swap out the batteries. Still seems to be plenty strong

Shipping was fast , install easy, set up was easy with well written directions

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

Centrifugal force would render these road debris in 100 miles or less. Sorry, I cannot endorse these.

Replaced my older style flow thru sensors on my 26 ft travel trailer. Programmed all four sensors without any issues and installed each one at a time. However on my first trip the two sensors on the left side didnt provide any readout on the display inside my pickup truck on a one hour trip. The two sensors on the right side were OK, as well as the four button caps on my truck. Not sure why just the left side wheels on the trailer are displaying information.

Did just like product said driving down the road noticed the pressure was dropping off slowly told off look for a nail nothing. Folding the truck stop filled up air entire took off down the road again. About three miles down the road the system let me know the air was leaking out faster than normal and alerted me before it got too low on pressure turned around put on the spare should have done that the first time

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.

good stuff

Tow Vehicle