I couldn't find much with a thread search but was wondering about how the systems that go inside the wheel compare to the valve stem cap type. And would also like to hear everybody's experience with these systems.

I used to have one on my MH (before stem type came out) and it worked great. The company who I can't think of the name pulled out of the RV market. I had problems with getting the tire changed on my tow rig as the people didn't know how to do it. MH tires no problem.Think they are only good for 18 wheelers as they change tires regular and replacement of batteries can be done on regular maintenance.With the stem type available I guess that why they pulled out of the market.The cost was like 2-3 times the stem type.Jim

My 2012 Ram has those and so far they have not been a problem. I can take'em or leave'em. I did have a huge bolt go through on of my tires and it told me which one, but it also didn't take long to figure out which one of them went flat either. It kind'a pulled to one side. It is fun to play with and watch the pressure change during the day, but that's about it. There has been no problem when I go to change tires either.

I have Pressure Pro (external) TPMS for the motor home and the toad. The toad was also factory equipped with internal TPMS for times its not being a toad. Both units have worked flawlessly. I wish there were some way of monitoring my Toad's internal TPMS on my Pressure Pro monitor when I'm towing it. Alas, ain't gonna happen.Ron

I considered the internal kit but the downside is if you have a problem, you have to dismount the wheel. I went with the external TST 507 system and it's been working fine for 3 years.

I have access to a fleet of vehicles to drive for the work I do. Most of these are equipped with the in wheel type pressure monitor systems. In the past two years no fewer than 6 of the vehicles have had a sensor failure in one wheel. This requires the dismount of the tire and replacement of the sensor. I seem to remember the invoice for one of the replacements was $280 parts and labor...but my memory isn't what it used to be. I know it was more than $100 because the fleet maintenance carrier had to be called to appprove the work.For me I would go with the valve stem cap type external sensors just for the ease of replacement.

tire pressure monitor systems | Good Sam Community

bmj11
Explorer
Apr 27, 2015
TST507 for me also . Great system and long warranty.
2manytoyz
Explorer
Apr 24, 2015
I bought the Tire Minder System #92-0400. $229. Mine will monitor up to 22 tires simultaneously, came with 4 sensors, and a signal booster. Very simple to install. They simply thread onto the existing valve stem. The battery in each sensor lasts a year, and is easily replaced. The company will send owners free batteries for 7 years (exchange program).

I bought mine here: http://www.pplmotorhomes.com/parts/rv-wheel-covers/tire-minder-pressure-monitor.htm

Nice part is I can buy more sensors if I end up with a Class A, towing a Jeep once again. It can be used with the tow vehicle, and the dingy.

Wish I had bought this years ago. I've had several tire failures on our TT. The last one gave no indication it was coming apart. No smoke, couldn't see any tire chunks in the mirror, and no shaking. Had someone pull up next to us and point at the trailer. That's never a good sign! Glad they did... could have lost the other tire on the same side since it was being overloaded at that point. No worries now though.
Ron3rd
Explorer III
Apr 24, 2015
93Cobra2771 wrote:
Not that I've ever heard. I think most people don't even know what they are.

X2, and if you were to steal one, you would have to make sure it is compatible with your monitor. Lots of different sensors out there and they're not interchangeable. I never worry about mine getting stolen and forget they're there most of the time.
93Cobra2771
Explorer
Apr 24, 2015
Not that I've ever heard. I think most people don't even know what they are.
bigred1cav
Explorer
Apr 23, 2015
Is there a problem with thieft of the sending units?
carmelo
Explorer
Dec 06, 2014
We have the Pressure Pro system with the external mounted sensors. I like this because: When I rotate the tires the sensors go back in the same place, I have them marked 1,2,3,4 so easy to place them in the same place on the TT.
I remove them when the TT is stored, this extends the life of the sensor and it is quick and easy to replace them. I do not have to recalibrate.

My experience, 4.5 yrs and lots of use, about 6-7 months per yr.

CCC
netaq
Explorer
Dec 04, 2014
I bought the "TireTech ON Tire Pressure Monitoring System" back in April. It uses valve cap sensors. Worked well so far for about 2,500 miles.
GrandpaKip
Explorer II
Dec 04, 2014
We've got about 6000 miles on our TST 507. Zero problems. Ours is the flow through type. Personally, I would not have the interior type because I couldn't mess with it if I had to.
93Cobra2771
Explorer
Dec 04, 2014
x3 on the TST 507. I got the flow through sensor version. They have also customer service both before and after the sale.
John_H
Explorer
Dec 04, 2014
Like Ron3rd, I have the TST external mounted system, have had a coupe of glitches but over all just fine. The company's help is Excellent, had trouble setting it up there originally, called and he talked me clear threw it. Monitor is compact and I found a place on the dash, because of that, where it is easily read and heard if that occurs. When we go to an area two stay, say for a week or so, I un-screw them to save on their internal battery's, easy to do and to put them back in their places when ready to roll. Used the original shipping box, with each of their protected plastic cubbie pockets as a storage.