I have the Fobo tire pressure sensors - they're great. But, there's one thing you have to watch out for... car washes. One of the brushless car washes I use has rails to keep the tires within boundaries - I got just a little to close to the left one, and it clipped my tire pressure sensor - and the valve stem it was mounted on. The sensors stick out a little further than the rim, so it's going to get hit first. Of course, the valve stem broke instead of the pressure sensor. This resulted in the car telling me to pull over immediately as my tire pressure was very low. My Fobo told me which tire it was, and I watched the pressure go to zero in just a few seconds. Once I got out of the car wash, I called Roadside assistance. They got a tow driver dispatched, checked in the area for a tire shop that knew how to work with Tesla's, and checked to see that the truck came when it was supposed to. My cost? ~$19 for a new valve stem. This isn't a fault of Fobo (I love these things - when is Tesla going to provide this info??), Tesla, or the car wash - it's just hard to see where those wheels are sometimes. Moral of the story - remove these when going into car washes with guide rails! Sidewalks don't seem to have this problem.