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

Been using these sensors for over a month now and they seem to be accurate so far so good

Bought these to add to a vehicle Im now towing behind my RV. They work as expected. However, be aware that they are longer and in my case stick out beyond the tire sidewall. Also, they use a different battery than the non-flowthru sensors. The battery is a smaller 1632 and I suspect will not last as long the 2032 installed in the non-flowthru sensor.

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

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

Product was exactly as advertised. And at better price than any I found.

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

Ive owned several different TPMS systems on three different RVs and TST is about the best Ive found.

Was ordered to add to my Motorhome setup for my Toad. TST is great, I have two systems. One on my Truck and one on my Motorhome.

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.

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.