Schrader 20159 TPMS Sensor for Saab Schrader is the global leader in TPMS innovation, design, quality, and technology More than 190 million Schrader sensors are in operation worldwide  more than 54% of the global vehicle market Patented Schrader technology embedded in all OEM and Aftermarket-replacement sensors Schrader offers direct-fit and programmable EZ-sensor replacement sensors Defect-free sensors manufactured in highly-automated, secure Schrader manufacturing environments