TPMS: What's the latest?

[BurbMan]

I installed a Dill TPMS on my TT when I upgraded to LT tires about 10 years ago. The system uses special metal valve stems with internal sensors, and at the time, the internal sensors were best for reporting both temp and pressure.
Looking at a TPMS system for the new 5er and I see now on Amazon that there are a wide variety of systems with external valve-cap sensors...anybody have any experience with any of these? How accurate is the tire temp using an external sensor?

[ford_truck_guy]

WNYBob wrote:
If you get external (cap type) make sure you get or have metal valve stems! The extra weight or stress can Crack the stems.
Don't ask how I know.

Good Point about Metal stems... I already had metal valve stems so it was a non issue for me..

[BB_TX]

I had the TST507 with screw on sensors and wasn’t quite sure how the temperature was derived with those spinning in free air. But I didn’t care about the absolute temperature, only if one was significantly different than the others.

[rlw999]

I've been very satisfied with my EEZRV monitor. No repeater required (but is available if needed), it picks up pressure from all the tires on my 28 ft Class C (including the spare) without a repeater. It's easy to set high/low pressure and temperature warnings.

https://eezrvproducts.com/

Batteries in the sensors last me around 18 months. I just use the regular cap style sensors, but flow-thru sensors are available so you can fill the tire without removing the sensor.

I doubt the temperature is super accurate at reflecting the real temperature of the tire itself (since it's sensing it from the end of the valve stem), but you can tell if one tire is running hotter than the others.

[2oldman]

The first thing you'll want to do is remove the anti-theft device from the sensor. It makes it a real pita to put air in the tire.

[WNYBob]

If you get external (cap type) make sure you get or have metal valve stems! The extra weight or stress can Crack the stems.
Don't ask how I know.

[ford_truck_guy]

I have the TST 507… LOVE IT

This is it - TST 507

Shop around, deals can be found