Your car can tell you when your tires have low air pressure, but there are different kinds of sensor to do that. Here are the ...

People online are cracking up at Michelin's Bluetooth tires that come with a QR code on the inside, but what's it all for?

The first is what you are discussing, with a sensor mounted inside the wheel (or within the valve stem). That’s called a Direct TPMS system, but there’s also an Indirect TPMS system that ...