Hello, by a hint in the car picture (where the article from the Volvo XC 60 comparison test was in) I came across TPMS from Atrium, with which you have control over tire pressure and temperature at all times without much effort. Since I am also such a ” tire pressure check muffle ” for me and my wife immediately ordered 2 sets, unpacked and mounted immediately, i.e. batteries in and valve caps down, then sensors on it – and had tire pressure and temperature briefly on it by radio. Link to this:http://www.atrium-enterprises.eu/PIB/auto_TPMS_flyer.pdf Works perfectly and cost me instead of € 139.- only € 88.- (per set), the black caps do not notice with my black/silver rims. And if – my safety would be worth it too. The tire is and remains the only contact to the road! Therefore – I can only recommend it! Greet Stefan