OBD2 Monitor LED Indication OBD2 Protocol Scanner Car Diagnostic Accessories H1

All 16 pins of the OBDII breakout box can be easily connected when the OBD2 scanner is communicating with the vehicle. Quick Access: The automotive protocol detector is an automotive tool for the OBDII diagnostic link connector, providing easy access to the OBDII connector for easy and secure monitoring of protocol, power and ground signals.