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

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

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

I bought 4 new ones for my 5th wheel. I had a set since 2015 that worked well, but one stopped working last fall (even with a fresh battery). They work the same as the older ones, and program the same way. My old ones used a special tool to put on because, when tightened, the sensor was free-spinning on the base. The special wrench was needed to grab the base to remove them. The new ones are no longer free-spinning. They use a separate nut that goes on the stem first, then screw the sensor on, then use the special wrench included to back up the first nut against the sensor so it cant be removed by hand. The special wrenches for the older versions are not interchangeable with the new ones.

TST has saved my tires and large motorcoach from expensive repairs and damage not to mention our safety.

Excellent TPMS. A bit complicated to set up, but quite doable with the instructions. Be sure to use the correct valve stems for wheel senders. Nice seeing in real time 10 tire pressures. TST offers the best customer service!

Good value for 4 sensors for the towed vehicle.

This is not a recommendation for this manufacturer. I have only had their monitor for a few months and it seems to work fine. It is a recommendation for the product. I have had tire pressure monitors for over 10 years and they have alerted me to serious tire problems several time which potentially averted major tire failures while driving. Blow outs can not only cause major accidents, but the shredded tires can cause thousands of dollars of damage to your coach, even if there is no accident. Ask any coach manufacturer what it costs to repair damage to compartments and side walls of coaches after a blow out.

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.

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.

They work great bought them for the smart car. They programmed into the main unit perfectly. Since we tow now we can watch to make sure all ten tires holding pressure.