Schrader TPMS Replacement Valves meet OE quality and performance specifications. Scharder TPMS sensors measure tire pressure and temperature. Scharder offers a growing range of replacement sensors that are designed for specific vehicle makes, models and y. Transmitters are make and model specific, consult the application guide to determine the proper replacement. Replacement transmitters and valves must be torqued with a specific torque wrench. Please refer to the application guide to determine the specific torque value.