ELM327 for Android Phones ONLY - Wireless Bluetooth Diagnostic OBD2 Sc – Big sales know more about what you need

ELM327 V2.1 OBD 2 OBD-II Car Auto Bluetooth Diagnostic Interface Scanner Android

ELM327 OBD2 OBDII Bluetooth Car Auto Diagnostic Scanner & Adapter - GeeWiz

ELM327 for Android Phones ONLY - Wireless Bluetooth Diagnostic OBD2 Sc – Big sales know more about what you need

Research and Development of Hybrid Electric Vehicles CAN-Bus Data Monitor and Diagnostic System through OBD-II and Android-Based Smartphones - Yalian Yang, Baolin Chen, Lin Su, Datong Qin, 2013

ODB2 Scanner recommendations

Research and Development of Hybrid Electric Vehicles CAN-Bus Data Monitor and Diagnostic System through OBD-II and Android-Based Smartphones - Yalian Yang, Baolin Chen, Lin Su, Datong Qin, 2013

Is there a good, inexpensive OBD2 Scanner I can buy that works? Rather than pay a mechanic $145 just to tell me what's wrong, I like to determine if it's a repair