The combination of MS906BT Diagnostic Tool and TS501 can achieve the same function as MS906TS or MS906 Pro-TS. Reasons to choose Autel Maxisys MS906BT: Same function as Autel MS906TS but cheaper, same online coding as MS906 Pro/ MK906BT, suitable for BMW/Porsche/VW/Nissan Nissan-GTR/Infiniti/Hyundai. Upgrade of Autel MS906 MS906 Pro MS906S with complete tire pressure monitoring system service. In short, Autel MS906BT+ts501 is the most cost-effective combination. Autel MS906BT supports superior OE-level features, from comprehensive OBDII diagnostics and service to advanced ECU coding.