Battery-free TPMS
The latest vehicles use a TPMS system without any little batteries in the sensors - it relies on the centrifugal action for energy. Do any of the aftermarket TPMS systems for trailers use this tech...
Forum Discussion
GordonThree wrote:
There's no sensor inside the wheel. Computer uses voodoo or maybe math, ambient temperature and wheel speed to calculate air pressure. My guess
Other manufacturers tried this long time ago and found it to be not accurate enough. It also does not handle the case of all tires equally under or over inflation.
