Comment Why have security when a very limited range should (Score 1) 260
Surley the best solution to this is no security at all and just use a very low power signal. How far should it need to go between the tyre and a fixed point on a car (a few cm at the most I think). Would it even be possible for the sensor to be connected to the cars computer via a cable and just eliminate the wireless security hole.
Then they just need to have the reciever ignore any signal with values outside the valid range.