Decided to spend a little more on this than cheaper ones elsewhere, what a mistake! If they printed identification codes on each sensor that would be ideal, but without those numbers I would have to buy their "reader" to get it! I could read these sensors so I had to return them and try another brand. If you or your tire shop don't have a dedicated Mobiltron scanner, you can't use these! Taken from their website: Is a MOREsensor programmer needed? Yes, you need a programmer compatible with ourβ¦