I've been following this thread because we I can see how important tire inflation is. My parents have had their travel trailer repaired twice because of damaged tires.
The issue I have with the systems I've seen is the sensor itself. They all seem to be mounted to the valve stem. That seems an odd place, and a bad place to monitor the tire's temperature.
Why aren't these sensors mounted inside the tire, as a part of the valve stem, like in an automotive application? The battery in those is designed to last around eight years.
I think the manufacturers of these things are could design something better for us.
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