Hub monitor

[pvfjr]

Ah ha, I'd missed that first time I clicked on it, but I see the ring terminals on the second option now. That could be handy, and is certainly cheap enough to play around with. Reducing convection with the air over the probe helps. Many times when want to measure the temperature of a thermally conductive object, I'll place the probe in contact with the surface as best as I can, then I'll insulate the rest of the probe to keep moving air off of it. For a permanent install, even a blob of some sort of sealant can make a big difference.

If I wanted to use TPMS to monitor temps I'd probably play with some internal ones like these. I do wonder how well they'd fit in our Alcoas since they're not exactly shaped like "normal" car wheels. Though battery replacement intervals also become a real consideration...
They do have much bigger batteries than the compact valve stem cap sensors though, so that helps.

 

[eserv]

Ah ha, I'd missed that first time I clicked on it, but I see the ring terminals on the second option now. That could be handy, and is certainly cheap enough to play around with. Reducing convection with the air over the probe helps. Many times when want to measure the temperature of a thermally conductive object, I'll place the probe in contact with the surface as best as I can, then I'll insulate the rest of the probe to keep moving air off of it. For a permanent install, even a blob of some sort of sealant can make a big difference.

If I wanted to use TPMS to monitor temps I'd probably play with some internal ones like these. I do wonder how well they'd fit in our Alcoas since they're not exactly shaped like "normal" car wheels. Though battery replacement intervals also become a real consideration...
They do have much bigger batteries than the compact valve stem cap sensors though, so that helps.
View attachment 9748

I definitely will be using some type of TPM. I have them on my travel van via bluetooth to my phone and also have them on the travel van to monitor the airbag pressure.

 

[Tybalt39]

I've been looking into TPMS systems for the coach. I was wondering if anyone had an opinion (loaded question!) on using an internal TPMS sensor on the original 16.5" steelies? Any fitment issues on wheels that old? I mean, the original valve stems sealed, so i would expect a replacement stem with a sensor attached to seal too....

Also, I read a review of someone complaining the cap-replacement style sensors caused his valve-stem to break. Any thoughts?

Also, an inexpensive way to try one out...