TST 507 Tire Pressure Monitoring System with 4 Flow Thru Sensors and Color Display for Metal Valve Stems by Truck System Technologies, TPMS for RVs, Campers and Trailers

Purchased this over a year ago and it keeps on ticking. I’ve not had to change a battery on any of the transceivers and it keeps accurate track of my tire pressure. I do long-haul trips with my travel trailer (last year, Missouri to Arizona, Missouri to California, and Missouri to Montana) so this has dramatically reduced my worries about what might be going on wrong with the tires on the highway.

Bought this after consistently seeing postings on RV websites about RV body damage caused by blowouts. Had new tires put on 2 weeks ago and installed the sensors. As we were starting our trip I noticed left rear tire was losing pressure fairly quickly. Detoured to tire dealer who discovered that rim had not been properly cleaned and new tire bead did not seat properly! Without TST this tire would have gone flat and most likely the front axle tire on my fifth wheel would have blown under the unequal load. Very satisfied customer.***Urgent Update** 2nd half of our trip saw another leak in a different tire. Back to the dealer. They had inadvertently installed the wrong valve stems! Rubber vs. all metal. The rubber stems were chafing where they passed through the rim because of the extra weight of the sensor. Sounded bogus, but a close exam of the stems proved they were right. They replaced all 4 stems with 100% metal stems - just like the TST instructions call for - and all seems to be well. Coincidentally on our return trip home we had seen a travel trailer by the side of the road with a blow out and body panel damage! Was grateful it wasn't us.

This has saved many trips in the RV. Very effective in tire pressure and heat monitoring. Works great in the hot Nevada desert. Well worth the money.

Was really excited to find a TPMS system that didn’t lose signal on my travel trailer and works without needing to be plugged in. I have only taken one trip but it worked well. The install was easy - just install the flow thru valve until it hisses and the sensor will be found. Install the repeater on the battery box. Set the minimum and maximum PSI on the display, charge it up and go!It’s a little costly - at over $300, it’s something I had to put a lot of thought into it and research before buying. However, I am hoping it is worth it.

Great product. The suction cup holder clips broke on initial install. Contacted company and they provided a new one right away w/o charge.The monitors are easy to install/program. Definitely provides piece of mind while towing. Obviously, they won’t prevent a blowout but it will alert you of any leaks (which probably caused previous tire failures I’ve had). Having hydraulic jacks & the close proximity of the lines to the tires - I don’t want another blowout happening & tipping those apart. A little speedy, but cheaper than having hydraulic lines repaired/replaced. Thanks for sending the replacement holder. Display cycles through & is easy to see in various light conditions

I used this on My Grand Design 34 ft travel trailer. Easy to install, but need to follow instructions closely. Functioned as advertised. NO problems at all. Provided added safety reassurance on move from NE Pennsylvania to Myrtle Beach SC. Glad to have in prep for early summer trip to NW USA

The display is flaky, does not always power up and sometimes the read-out gets scrambled. That is not the worst part, after almost 1 year of use one of my sensors failed, as in completely fell apart when checking air pressure with my manual gauge before a trip! Glad this did not happen on the road. For what you pay for this product it should last longer than a year. I added this to my 5th wheel as I have had blow-outs before and an early warning system can be very helpful. Can't depend on this product. I had to completely remove it and its no good.

Update 5/7/21: I’ve had the system almost two years now. Original batteries in 3 out of 4 sensors and still working. Same bad sensor continues to drain batteries. It took quite a bit of discussion with the TST but they are sending me out a new sensor to replace the one faulty sensor. If you get this system and any of the sensors don’t work, save yourself the headache and return the whole system and get a replacement.Update: Sensor with slow battery drain was sent back to TST and found to not have any issues after testing it for a week. TST sent it back to me. I'm just planning on buying a new sensor eventually but for now, I have a huge pack of batteries that I just need to replace every 4 months. Based on how I use my camper, that's one battery in spring and then just swap in another battery in August or September... It's annoying but technically works. All the other sensors are still on their factory battery. Dropped my rating back down to the original 4 stars. Seems like mine isn't the normal... If I get fed up enough I'll just buy new sensors and keep the extra sensor as a spare or put on my spare tire.==========================Product arrived fine. When trying to pair one of the sensors didn’t work. I removed the battery and it tested to 0.13V when book says minimum required is 3V. Swapped in a battery from another unit and it worked fine.So in short, buy some spare batteries when you purchase this. I just ordered some and can install this system in a couple more days.Overall easy to program the unit. Excited to have it for my camper since last year I blew a tire out on the highway after getting a flat.1 yr update: same sensor has required 4 new batteries when others are still on the factory ones. Called TST and they were great to deal with. Said mine must have some kind of short causing it to drain battery and are helping me with the return process.After owning for a year and being on my camper that I use infrequently I can say that these are awesome. Do get metal stems installed. I didn’t and thought metal stems just meant metal thread part and rubber at the wheel but no, they are full metal. I broke one of my stems and luckily didn’t rip it off and both lose the $50 sensor and have a tire fast deflate at speed.Based on the above I’ve upgraded my rating to 5 stars.