Using the Launch X431 Pro Lite you can diagnose you car problem in less than 3 minutes. The Pro Lite is a smaller unit than the PRO 3S and dosen’t come with all the connectors for older vehicles. If you have an older Launch scanner you can use your old connectors if needed. The smaller sized (7" screen) X431 Pro Lite inherits the powerful diagnostic functions of the Launch X431 family of scanners. Integrated with with the multi-function connector, the X431 Pro Lite is easier to use for the technicians and the workshop.