**The price of the TPMS valve is not included in the price indicated above (please go to the basket page for the total cost of your wheel). The TPMS (Tyre Pressure Monitoring System) electronic valve is a pressure sensor fitted in your vehicle's pneumatic valve which measures the tyre pressure and sends the data to a receiver that displays the result on the dashboard of your car. Since 1 November 2014, all new vehicles sold must be fitted with a TPMS tyre pressure monitoring system. Some vehicles sold prior to this date have the system fitted already. It is therefore important to check whether your vehicle already has the TPMS tyre pressure monitoring system before ordering.