TPMS Sensor (TPM23A) by Standard®. OE Style. Frequency: 315 Mhz. With more than 95 years of experience, Standard is the leader in the automotive aftermarket. Standard designs, engineer, manufacture and distribute over 40,000 of the highest-quality engine management products in some of the most advanced-technology categories. TPMS product line is no different. Each product is rigorously tested to meet strict quality standards. What’s more, Standard holds more than 30 TPMS-specific patents and have an additional 20+ pending.