I have no idea what this device is. Its raised a few questions. I was installing a new device in my garage that had bluetooth and picked this apparent OBDII device up. Doesn't pair on my iPhone (not unusual for OBD devices on iOS), but Win 10 prompts for password. Nothing obvious with a BLE scan. It may have been around for some time from some other source and I had just not noticed it before, or it could be linked to a service centre visit last week... First thought was that they had been careless and left a OBD device inside, but then I wondered if all Model 3's had OBD bluetooth capabilities and they had just forgotten to disable the service. I have asked Tesla if one of their OBD devices is missing.