Box of 4 Metal Press-in Valve Stems for 1-Sensor The MXSensorMVK is a box of four press-in metal valve stems. They are compatible with Autel 1-Sensors and Autel 315MHz & 433 MHz MX-Sensors. ,- Includes 4 Metal Press-in Valve Stems - Compatible with Autel 1-Sensors - Compatible with Autel 315 MHz and 433 MHz MX-Sensors - 2 Year Warranty on Material and Workmanship