By safety council, installing RUNFLAT tires MUST install a working TPMS system. You should considering that as well. If you car doesn't equipped with TPMS system, certified shop will not install RUNFLAT tires for you. its because RUNFLAT tires can still run even tires has no air, therefore its dangerous to keep driving without TPMS warning.
An external TPMS system can be installed and available to be purchased. This system is for cars that don’t have TPMS system built-in. PM me for detail.