Version 3. 4. 51. Code Reader Pro - EX. Android Mobile and Tablet. Supports Bluetooth and WiFI OBD-II adapters. Requirement: 1. The car must be OBD-II compliant. 2. Bluetooth ELM327 OBD-II Adapter. 3. The bluetooth device on the phone must be enabled and paired with the bluetooth. OBD-II adapter Features.