There are frequent test reports on tire pressure monitoring systems: "Mobile tire pressure monitoring systems allow for easy pressure checking, and thanks to variable adapters, they can sometimes be used on car, motorcycle, and bicycle tires alike. A tread depth gauge is often integrated. However, systems permanently installed in the valve are considered more accurate and supply data to the vehicle's on-board computer." http://www.testberichte.de/reifen-und-felgen/2975/reifendruck-kontrollsysteme.html It is important, however, to distinguish between direct and indirect systems. ...
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