The Launch Tech X-431 TSGUN is designed to work with X-431 scan tools to expand TPMS functions and generate revenue for X-431 users. It can instantly read tire pressure, tire temperature, and battery status. The X-431 TSGUN is able to activate and match all 315MHz or 433MHz sensors as well as read, copy, and write the sensor ID quickly and easily. Users can also reprogram Launch sensors unlimitedly with a built-in tire pressure learning instruction.