The MaxiTPMS TS408, which replaces Autel's TS401, is an easy-to-read handheld TPMS service tool that can activate and read Sensor ID, battery life and tire pressure and temperature. The TS408 can also program mx-sensors to replace OE sensors and can display On-Screen relearn procedures for All TPMS-equipped vehicles. Software updates are free for the life of this tools.