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

Adding these tire pressure caps to our tow vehicle gives me much more peace of mind. We drive a 45’ diesel pusher, being able to monitor the tire pressure and temperatures is added security. Have driven about 3,000 miles since installing, no issues so far.

I have the tst system but I needed 2 more pass through valve stem Monitors. They work prefect with my existing system. On time delivery product as advertised

Didnt need to use the extender to get signal from the toad vehicle for these.

Just back from 1500 mile trip and these worked great on my trailer.i felt much better rolling down the road and able to keep an eye on my tire heat and pressure

Much larger than I expected. Easy to install and they feel secure.

They did their job in the first few weeks of installing them on our tow vehicle. We tow a Nissan behind our RV that picked up a nail in the back passenger tire. We lost ten pounds and were alerted of the problem before we ended up with a blowout while towing. So I highly recommend them if you are towing a vehicle behind your RV. We have pass throughs for the RV itself and love those as well.

Worked great. Integrated well with my monitor

Work fine.

Mounted on tow car behind motorhome. Works as described

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